An Analysis of the
Effect of IEEE
Publications on the
Hewlett-Packard Co. (HP)
Patent Portfolio
Prepared by IEEE for
Hewlett-Packard Co. (HP)
Based on a study conducted
by CHI Research, Inc.
An Analysis of the
Effect of IEEE Publications on the
Hewlett-Packard Co. (HP) Patent Portfolio
Executive Summary
Introduction – Today's Patents Cite Scientific Literature
In 2003, the IEEE commissioned CHI Research Inc., a worldwide leader in intellectual property consulting,
to analyze how IEEE-published information influences patents in today’s top technologies. According to the
studies, patents issued by the U.S. Patent office are citing scientific literature, primarily IEEE information,
more than ever before. CHI found that patents today are based on the fundamental source – scientific and
technical literature, representing a shift from just 20 years ago when patents issued in information technology
cited primarily previous patents. In the study, CHI also identified the top 25 patenting organizations in 2002,
which includes Hewlett-Packard Co. (HP). See Figure 1.
Figure 1: Top 25 Patenting Firms in 2002
Rank
1
2
3
4
5
6
7
8
9
10
11
12
13
Company Name
IBM
Canon Inc
NEC Corporation
Hitachi Ltd
Micron Technology
Matsushita Electric
General Electric
Sony Corporation
Samsung Group
Mitsubishi Electric
Hewlett-Packard Co.
Fujitsu Limited
Siemens AG
#US Patents
Rank
3334
1937
1920
1882
1851
1712
1681
1601
1563
1474
1391
1368
1357
14
15
16
17
18
19
20
21
22
23
24
25
Company Name
Toshiba Corporation
Philips Electronic N.V.
Advanced Micro Devices
Intel Corp
Fuji Photo Film Co Ltd
Lucent Technologies
Robert Bosch GmbH
Motorola Inc
Ericsson (LM) Telephone
Texas Instruments Inc.
Eastman Kodak Co
Honda
#US Patents
1352
1276
1152
1088
1010
818
800
778
767
744
706
703
IEEE is the Science Base for the Top Patenting Organizations
The analysis of the top 25 patenting organizations revealed that IEEE-published science was cited more
often than that of other scholarly and commercial publishers:
• 38% of all science references from the patents of the top 25 patenting organizations go to articles that
appear in IEEE journals. This is more than three times as many references to the second place publisher.
See Figure 2.
• The results become even more impressive when we look at specific subcategories of patents.
o Telecom: 58% of all science references come from IEEE
o Computer hardware: 55% of all science references come from IEEE
o Computer software: 45% of all science references come from IEEE
o Semiconductors: 22% of all science references come from IEEE
o Optics: 21% of all science references come from IEEE (see Report B: "Analysis of References to IEEE
Articles from Patents in 5 Technology Areas," 23 March, 2004)
• Referencing to IEEE articles in patents has increased 267% in the last decade.
Continued on page 2...
The Effect of IEEE Publications on the Hewlett-Packard Co. (HP) Patent Portfolio
-1-
... Continued from page 1
• CHI has documented that high patent citation rankings for an organization have been shown to be associated
with increases in sales, profits, and stock price. Technology that builds upon IEEE science is likely to be of
more value than peer technology not built on IEEE science. Patents that reference the IEEE are cited more
often than patents that do not reference IEEE.
• The most highly cited patents build on IEEE science. There are more than 1,000 highly cited patents,
which CHI calls "blockbuster" patents, that reference at least three IEEE articles (see Report B:
"Analysis of References to IEEE Articles from Patents in 5 Technology Areas," 23 March, 2004).
Figure 2: Number of Patent References from Top 25 Patenting Organizations to Top Publishers*
IEEE
43694
12877
Amer. Inst. Physics
6564
Elsevier Science
5249
IEE
3786
Inst. Pure Applied Physics
Electrochemical Soc. Amer.
3313
AVS Amer. Inst. Physics
3160
Amer. Chemical Soc.
2866
ACM
2725
Optical Soc. Amer.
2699
IBM Corp.
1761
Pennwell Pub.
1689
American Physical Soc.
1625
SPIE- Int. Soc. Opt. Eng.
1565
Pergamon-Elsevier
1501
John Wiley & Sons
1215
MRS Mat. Research Society
1128
Lucent
1058
Penton
1037
0
IEEE cited 3x more
10,000
20,000
30,000
40,000
50,000
*Publishers compiled from all journals referenced 100+ times total from 25 organizations.
IEEE Science Drives Hewlett-Packard Co. (HP) Patents
CHI Research analyzed the science references to journal articles from the top patenting organizations from
1983-2002. They found over 1,947 science references to IEEE from Hewlett-Packard Co. patents, which
comprise over 28% of the total number of Hewlett-Packard science references in this time period.
Hewlett-Packard Patent References to IEEE
72%
Hewlett-Packard Patent References to
other Publishers
28%
Number of science references to journal articles for 1983-2002
Hewlett-Packard Co. (HP) patents
The Effect of IEEE Publications on the Hewlett-Packard Co. (HP) Patent Portfolio
-2-
Hewlett-Packard is One of the Top 50 Patenting Firms That Cites IEEE Science
CHI Research also analyzed the top patenting organizations that reference IEEE most in several key
technology categories. Hewlett-Packard was identified as one of the top 50 firms with patent citations to
IEEE published science in the following technology areas during the time period of 1983 to 2003:
Technology
Category
Number of
Hewlett-Packard Co. (HP)
Patent Science References
to IEEE
Total Number of
Hewlett-Packard Co. (HP)
Patent Science References
Percentage of
Hewlett-Packard Co. (HP)
References to IEEE
Computer Hardware
414
1,107
37%
Optics
167
576
29%
Semiconductors
176
860
20%
Software
631
2,395
26%
Telecommunications
362
1,001
36%
Hewlett-Packard "Blockbuster" Patents Are Based on IEEE Science
The CHI report demonstrates that high citation rates are correlated with high impact patents. High patent
citation rankings for an organization have been shown to be associated with increases in sales, profits, and
stock price. There are more than 1000 highly cited patents that are based on IEEE science. The analysis finds
that numerous Hewlett-Packard patents are both highly cited and extensively reference IEEE articles:
Hewlett-Packard Co. (HP)
Patent Name
Patent No.
IEEE Refs
Cites
received
Expected
citations
Multiple processor system having shared
memory with private-write capability
04965717
7
118
21.36
5.52
Fault-tolerant computer system with online
recovery and reintegration of redundant
components
05295258
5
89
18.41
4.83
Instruction storage method with a
compressed format using a mask word
05057837
4
53
11.76
4.51
System and method for lossless image
compression having improved sequential
determination of golomb parameter
05764374
3
23
5.59
4.11
Computer-aided design methods and
apparatus for multilevel interconnect
technologies
05610833
3
48
11.91
4.03
Optical isolation amplifier with sigma-delta
modulation
05287107
7
37
9.41
3.93
Compression using small dictionaries with
applications to network packets
05389922
3
32
8.76
3.65
The Effect of IEEE Publications on the Hewlett-Packard Co. (HP) Patent Portfolio
-3-
Citation
index*
Hewlett-Packard Co. (HP)
Patent Name
Patent No.
IEEE Refs
Cites
received
Expected
citations
Polarization independent optical coherencedomain reflectometry
Citation
index*
05202745
7
28
7.99
3.51
Anisotropically etched ink fill slots in silicon
05308442
3
47
13.42
3.50
Voltage-controlled ring oscillator using
complementary differential buffers for
generating multiple phase signals
05239274
4
27
7.72
3.50
Process for forming lightly-doped-drain
(LDD) without extra masking steps
04843023
5
53
15.36
3.45
Method for manufacturing test simulation in
electronic circuit design
05539652
15
51
14.94
3.41
Fault-tolerant computer system with online
recovery and reintegration of redundant
components
06073251
4
13
3.83
3.39
Hierarchical priority branch handling for
parallel execution in a parallel processor
04833599
4
72
21.71
3.32
*Examples pulled from list of the top 1000 patents in terms of citation index among those with at least 4 citations and at least 3 references to IEEE papers.
Citation index is the number of citations divided by the expected citations; expected citations are the average number of citations for all patents in the same
technology class and age.
Conclusions
The data presented here demonstrates the value of IEEE information to technological innovation for the top
patenting organizations. Patents today are citing scientific literature, primarily IEEE information, more than
ever before. This new analysis of the top patenting organizations revealed that IEEE-published science was
cited more often than that of other scholarly and commercial publishers and the most innovative
"blockbuster" patents build on IEEE science, demonstrating that IEEE is the science base for the top
patenting organizations.
The Effect of IEEE Publications on the Hewlett-Packard Co. (HP) Patent Portfolio
-4-
About CHI Research Inc.,
the company BusinessWeek called "A Search Engine For Tech Prospectors"
CHI Research, Inc. is a highly focused research consultancy internationally recognized for its leadership in
the development and analysis of technology and science indicators. Formed in 1968, CHI pioneered the
development of science and technology citation analysis. Working with the U.S. National Science
Foundation, CHI developed the first national-scale bibliometric indicators of scientific performance in the
early 1970s. Since then, CHI has produced all the literature-to-literature, patent-to-literature and patent-topatent citation indicators ever used in the congressionally mandated Science and Engineering Indicators
reports published by the U.S. National Science Board.
About IEEE
The IEEE is the world’s largest technical professional society with approximately 360,000 members in 170
countries. Through its members, the IEEE is a leading authority on areas ranging from aerospace, computers
and telecommunications to biomedicine, electric power and consumer electronics. The IEEE produces 30
percent of the world’s literature in the electrical and electronics engineering and computer science fields, and
has developed more than 900 active industry standards. The organization also sponsors or cosponsors more
than 300 international technical conferences each year. Additional information is available at www.ieee.org.
For more information,
• Read the enclosed CHI Studies:
Report A: "The Effect of IEEE Publications on Subsequent Patented Technology," 29 July, 2003.
Report B: "Analysis of References to IEEE Articles from Patents in 5 Technology Areas," 23 March, 2004.
• Contact Karen Hawkins, IEEE Senior Marketing Manager, at k.hawkins@ieee.org.
The Effect of IEEE Publications on the Hewlett-Packard Co. (HP) Patent Portfolio
-5-
Top 50 Organizations That Cite IEEE
in Computer Hardware Patents
Organization
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
IBM
Texas Instruments Incorporated
Mitsubishi Electric Corp
Micron Technology, Inc.
Toshiba Corporation
Motorola Inc
Hitachi Ltd
NEC Corporation
Lucent Technologies
LSI Logic Corp.
Hewlett-Packard Company
Intel Corp
Seagate Technology
Advanced Micro Devices Inc.
Matsushita Electric Industrial Co Ltd
Koninklijke Philips Electronics N.V.
Fujitsu Limited
STMicroelectronics N.V.
Pioneer Corp
Seiko Epson Corporation
Rambus Inc.
Siemens AG
Cadence Design Systems, Inc.
Sony Corporation
Cirrus Logic Inc.
General Electric Co
Sun Microsystems Inc
Canon Inc
Altera Corp.
Xerox Corporation
National Semiconductor Corporation
Eastman Kodak Co
Synopsys Inc
Komag Inc.
Sharp Corporation
Microsoft Corp
Samsung Group
Caterpillar Inc
Raytheon Company
Unisys Corp
MIT/Mass Inst of Technology
Xilinx Inc
Microelectronics & Co
Cypress Semiconductor Corp
Sandisk Corp
California Inst of Technology
Analog Devices Inc
Quantum Corp.
Hynix Semiconductor Inc.
Honeywell Inc
# IEEE
Refs
# Total
Science
Refs
1526
966
598
572
519
489
457
447
434
425
414
382
374
332
308
307
288
284
270
258
255
241
241
228
205
201
165
162
146
145
144
134
127
120
116
112
112
103
99
98
95
81
78
75
72
72
67
65
63
61
3549
1558
970
1092
1066
805
1143
801
835
632
1107
567
552
824
759
656
629
438
569
460
363
543
438
479
307
429
422
847
346
535
258
392
165
237
365
386
257
187
201
202
387
142
191
99
107
163
96
118
75
126
% IEEE
Refs
43.0
62.0
61.6
52.4
48.7
60.7
40.0
55.8
52.0
67.2
37.4
67.4
67.8
40.3
40.6
46.8
45.8
64.8
47.5
56.1
70.2
44.4
55.0
47.6
66.8
46.9
39.1
19.1
42.2
27.1
55.8
34.2
77.0
50.6
31.8
29.0
43.6
55.1
49.3
48.5
24.5
57.0
40.8
75.8
67.3
44.2
69.8
55.1
84.0
48.4
Note: The Table Above Represents Data Collected From 1983-2003
The Effect of IEEE Publications on the Hewlett-Packard Co. (HP) Patent Portfolio
-6-
Top
Referenced
Publisher
Second
Most Referenced
Publisher
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IBM CORP
IEE
INST PURE APPLIED PHYSICS
AMER INST PHYSICS
AMERICAN PHYSICAL SOC
MILLER FREEMAN
AMER INST PHYSICS
AMER INST PHYSICS
IEE
ELSEVIER SCIENCE
ACM
ACM
AMER INST PHYSICS
CMP MEDIA
ELSEVIER SCIENCE
PHILIPS CO
AMER INST PHYSICS
IEE
OPTICAL SOC AMER
ACM
PENTON
ELSEVIER SCIENCE
PENTON
SOC MOTION PICTURE TV ENG INC
PENTON
OPTICAL SOC AMER
ACM
AMER INST PHYSICS
PENTON
SPIE-INT SOCIETY OPTICAL ENG
PENTON
AMER INST PHYSICS
IEE
AMER INST PHYSICS
INST PURE APPLIED PHYSICS
ACM
CMP MEDIA
INDERSCIENCE ENTERPRISES LTD
OPTICAL SOC AMER
ACM
ELSEVIER SCIENCE
ACM
AMER INST PHYSICS
IECE
IECE
AMER INST PHYSICS
IEE
IBM CORP
ACM
AMER INST PHYSICS
#
Refs
%
Refs
229
104
45
106
65
93
66
33
40
27
84
26
61
179
46
29
26
21
40
31
18
30
31
36
22
17
73
144
79
36
12
30
8
73
37
25
34
12
17
19
27
8
27
4
6
15
6
18
2
17
6.5
6.7
4.6
9.7
6.1
11.6
5.8
4.1
4.8
4.3
7.6
4.6
11.1
21.7
6.1
4.4
4.1
4.8
7.0
6.7
5.0
5.5
7.1
7.5
7.2
4.0
17.3
17.0
22.8
6.7
4.7
7.7
4.8
30.8
10.1
6.5
13.2
6.4
8.5
9.4
7.0
5.6
14.1
4.0
5.6
9.2
6.3
15.3
2.7
13.5
Top 50 Organizations That Cite IEEE
in Optics Patents
Organization
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Lucent Technologies
NEC Corporation
Siemens AG
Fujitsu Limited
Northrop Grumman Corporation
MIT/Mass Inst of Technology
Alcatel
JDS Uniphase Corp
British Telecommunications PLC
Stanford University
Raytheon Company
Nortel Networks Corp
US Navy
Ericsson (LM) Telephone Co Inc
General Electric Co
Science Applications Int'l
Matsushita Electric Industrial Co Ltd
Hewlett-Packard Company
Mitsubishi Electric Corp
Canon Inc
Corning Inc
Nippon Telegraph and Telephone Corp.
IBM
Xerox Corporation
France Telecom
Hitachi Ltd
Sharp Corporation
Light Chip Inc
Boeing Co, The
Toshiba Corporation
Coherent Inc.
Koninklijke Philips Electronics N.V.
Verizon Communications
Hamamatsu Photonics KK
US DOE
Thales Group
Lockheed Martin Corp.
Fuji Photo Film Co Ltd
Honeywell Inc
Sumitomo Electric Industries Ltd
MMM/Minnesota Mining & Mfg Co
Pioneer Corp
Motorola Inc
Pirelli SpA
A T & T Corp.
Thermo Electron Corp
University of California
Ciena Corp
Eastman Kodak Co
California Inst of Technology
# IEEE
Refs
# Total
Science
Refs
% IEEE
Refs
1317
381
357
285
284
270
260
233
228
221
218
209
205
185
176
174
173
167
163
151
148
146
136
133
132
129
116
113
109
108
106
105
105
98
93
84
83
82
82
81
76
73
68
67
67
66
65
60
60
59
4411
1296
1144
905
1018
1472
757
850
1131
1322
1295
574
1175
347
641
630
884
576
683
1282
611
639
879
911
421
792
1055
278
350
521
532
515
339
376
687
469
444
432
435
353
1055
259
210
222
134
445
688
104
556
399
29.9
29.4
31.2
31.5
27.9
18.3
34.3
27.4
20.2
16.7
16.8
36.4
17.4
53.3
27.5
27.6
19.6
29.0
23.9
11.8
24.2
22.8
15.5
14.6
31.4
16.3
11.0
40.6
31.1
20.7
19.9
20.4
31.0
26.1
13.5
17.9
18.7
19.0
18.9
22.9
7.2
28.2
32.4
30.2
50.0
14.8
9.4
57.7
10.8
14.8
Top
Referenced
Publisher
Second
Most Referenced
Publisher
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEE
OPTICAL SOC AMER
AMER INST PHYSICS
IEEE
OPTICAL SOC AMER
IEEE
IEEE
IEEE
AMER INST PHYSICS
IEEE
AMER INST PHYSICS
AMER INST PHYSICS
IEEE
IEE
AMER INST PHYSICS
AMER INST PHYSICS
IEEE
AMER INST PHYSICS
AMER INST PHYSICS
IEEE
IEEE
AMER INST PHYSICS
OPTICAL SOC AMER
IEEE
IEEE
IEEE
AMER INST PHYSICS
AMER INST PHYSICS
AMER INST PHYSICS
IEEE
OPTICAL SOC AMER
IEEE
AMER INST PHYSICS
IEEE
IEEE
IEE
IEEE
OPTICAL SOC AMER
AMER INST PHYSICS
IEEE
AMER INST PHYSICS
AMER INST PHYSICS
IEE
IEE
IEE
IEE
OPTICAL SOC AMER
OPTICAL SOC AMER
IEE
OPTICAL SOC AMER
IEEE
IEEE
OPTICAL SOC AMER
IEE
AMER INST PHYSICS
IEE
OPTICAL SOC AMER
AMER INST PHYSICS
IEEE
IEE
IEEE
IEEE
OPTICAL SOC AMER
IEEE
IEEE
IEEE
IEE
IEEE
INST PURE APPLIED PHYS
OPTICAL SOC AMER
OPTICAL SOC AMER
IEEE
IEEE
OPTICAL SOC AMER
IEE
OPTICAL SOC AMER
OPTICAL SOC AMER
IEEE
IEEE
AMER INST PHYSICS
IEEE
IEE
OPTICAL SOC AMER
OPTICAL SOC AMER
IEE
IEEE
IEE
AMER INST PHYSICS
OPTICAL SOC AMER
IEE
OPTICAL SOC AMER
OPTICAL SOC AMER
Note: The Table Above Represents Data Collected From 1983-2003
The Effect of IEEE Publications on the Hewlett-Packard Co. (HP) Patent Portfolio
-7-
#
Refs
%
Refs
830
215
172
157
255
247
231
179
228
221
216
110
239
54
101
153
173
75
163
151
134
146
136
133
114
129
139
63
65
108
106
75
67
60
126
84
83
63
82
73
127
37
40
67
23
82
68
23
79
63
18.8
16.6
15.0
17.3
25.0
16.8
30.5
21.1
20.2
16.7
16.7
19.2
20.3
15.6
15.8
24.3
19.6
13.0
23.9
11.8
21.9
22.8
15.5
14.6
27.1
16.3
13.2
22.7
18.6
20.7
19.9
14.6
19.8
16.0
18.3
17.9
18.7
14.6
18.9
20.7
12.0
14.3
19.0
30.2
17.2
18.4
9.9
22.1
14.2
15.8
Top 50 Organizations That Cite IEEE
in Semiconductors Patents
Organization
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
# Total
Top
# IEEE Science % IEEE Referenced
Refs
Refs
Refs
Publisher
Micron Technology, Inc.
1296
Lucent Technologies
928
Mitsubishi Electric Corp
658
Texas Instruments Incorporated
608
IBM
581
NEC Corporation
506
Toshiba Corporation
493
Motorola Inc
395
STMicroelectronics N.V.
371
Fujitsu Limited
360
Siemens AG
345
National Semiconductor Corporation
284
Advanced Micro Devices Inc.
279
General Electric Co
260
Hitachi Ltd
256
MIT/Mass Inst of Technology
237
Matsushita Electric Industrial Co Ltd
236
Koninklijke Philips Electronics N.V.
214
Sharp Corporation
194
Raytheon Company
192
Hewlett-Packard Company
179
Canon Inc
177
Xerox Corporation
161
US Navy
143
Northrop Grumman Corporation
141
Nortel Networks Corp
138
Vishay Intertechnology, Inc.
137
JDS Uniphase Corp
126
Honeywell Inc
126
Sumitomo Electric Industries Ltd
125
University of California
122
North Carolina State University
119
Semiconductor Energy Laboratory Co Ltd
118
US Air Force
117
LSI Logic Corp.
107
Samsung Group
106
British Telecommunications PLC
105
Thales Group
102
US DOE
101
General Motors Corporation
101
Hynix Semiconductor Inc.
100
ABB Asea Brown Boveri
99
Intel Corp
96
France Telecom
95
Sony Corporation
92
Eastman Kodak Co
90
Taiwan Semiconductor Mfg. Co. Ltd.
88
Alcatel
85
Stanford University
82
Nippon Telegraph and Telephone Corp.
81
4003
4148
2035
2760
2959
1865
1812
1415
988
1563
1395
573
762
1100
1402
1510
1275
873
1210
999
860
1822
1038
1121
710
380
216
441
443
969
1040
760
1984
409
306
279
528
360
690
564
251
246
370
320
404
330
192
258
542
453
32.4
22.4
32.3
22.0
19.6
27.1
27.2
27.9
37.6
23.0
24.7
49.6
36.6
23.6
18.3
15.7
18.5
24.5
16.0
19.2
20.8
9.7
15.5
12.8
19.9
36.3
63.4
28.6
28.4
12.9
11.7
15.7
5.9
28.6
35.0
38.0
19.9
28.3
14.6
17.9
39.8
40.2
25.9
29.7
22.8
27.3
45.8
32.9
15.1
17.9
IEEE
AMER
IEEE
IEEE
AMER
IEEE
IEEE
IEEE
IEEE
AMER
IEEE
IEEE
IEEE
IEEE
AMER
AMER
AMER
IEEE
AMER
AMER
AMER
AMER
AMER
AMER
AMER
IEEE
IEEE
IEEE
IEEE
AMER
AMER
AMER
AMER
IEEE
IEEE
IEEE
IEE
IEEE
AMER
AMER
IEEE
IEEE
IEEE
IEEE
AMER
IEEE
IEEE
IEEE
AMER
AMER
Note: The Table Above Represents Data Collected From 1983-2003
The Effect of IEEE Publications on the Hewlett-Packard Co. (HP) Patent Portfolio
-8-
INST PHYSICS
INST PHYSICS
Second
Most Referenced
Publisher
AMER
IEEE
AMER
AMER
IEEE
AMER
AMER
AMER
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
ELECTROCHEMICAL SOC INC
INST PHYSICS
IEEE
AMER INST PHYSICS
AMER INST PHYSICS
ELECTROCHEMICAL SOC INC
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
INST PHYSICS
AMER INST PHYSICS
IEEE
IEEE
IEEE
AMER INST PHYSICS
IEEE
IEEE
IEEE
ELSEVIER SCIENCE
IEEE
IEEE
IEEE
AMER INST PHYSICS
PERGAMON-ELSEVIER
AMER INST PHYSICS
AMER INST PHYSICS
ELSEVIER SCIENCE
ELSEVIER SCIENCE
IEEE
ELSEVIER SCIENCE
AMER INST PHYSICS
AMER INST PHYSICS
AMER INST PHYSICS
IEEE
AMER INST PHYSICS
IEEE
IEEE
AMER INST PHYSICS
AMER INST PHYSICS
ELECTROCHEMICAL SOC INC
INST PHYSICS
AMER INST PHYSICS
IEEE
AMER INST PHYSICS
ELECTROCHEMICAL SOC INC
INST PHYSICS
INST PHYSICS
IEE
IEEE
IEEE
#
Refs
%
Refs
605
928
466
525
581
426
340
209
179
360
215
54
96
207
256
237
236
111
194
192
179
261
161
143
141
86
14
106
88
135
121
119
300
95
57
30
105
80
101
101
34
35
73
85
92
83
35
67
82
81
15.1
22.4
22.9
19.0
19.6
22.8
18.8
14.8
18.1
23.0
15.4
9.4
12.6
18.8
18.3
15.7
18.5
12.7
16.0
19.2
20.8
14.3
15.5
12.8
19.9
22.6
6.5
24.0
19.9
13.9
11.6
15.7
15.1
23.2
18.6
10.8
19.9
22.2
14.6
17.9
13.5
14.2
19.7
26.6
22.8
25.2
18.2
26.0
15.1
17.9
Top 50 Organizations That Cite IEEE
in Software Patents
Organization
# IEEE
Refs
# Total
Science
Refs
Top
Referenced
Publisher
Second
Most Referenced
Publisher
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
IBM
Lucent Technologies
Hewlett-Packard Company
Microsoft Corp
Hitachi Ltd
Motorola Inc
NEC Corporation
Intel Corp
Sony Corporation
Siemens AG
Sun Microsystems Inc
Xerox Corporation
Matsushita Electric Industrial Co Ltd
Fujitsu Limited
Toshiba Corporation
MIT/Mass Inst of Technology
Canon Inc
Koninklijke Philips Electronics N.V.
Apple Computer Inc.
Mitsubishi Electric Corp
Silicon Graphics Inc.
Ricoh Company Ltd
Verizon Communications
Texas Instruments Incorporated
E I DuPont de Nemours & Co
Ericsson (LM) Telephone Co Inc
A T & T Corp.
Secure Computing Corp.
Digimarc Corp
Digital Voice Systems, Inc.
General Electric Co
British Telecommunications PLC
Nortel Networks Corp
NCR Corporation
Alcatel
Micron Technology, Inc.
Fuji Photo Film Co Ltd
Cray Inc.
SRI International
Washington University
Sharp Corporation
Dolby Labs Licensing Corp.
LSI Logic Corp.
1389
784
631
418
331
310
277
248
219
217
204
204
203
197
192
173
173
170
167
154
148
144
143
142
125
124
111
110
108
107
104
95
94
91
84
82
82
76
75
73
71
67
67
4593
1725
2395
1670
992
505
539
538
497
533
1291
770
508
529
496
487
502
415
683
383
647
271
238
321
212
232
296
350
330
119
267
294
178
252
216
120
207
118
121
237
149
133
119
30.2
45.4
26.3
25.0
33.4
61.4
51.4
46.1
44.1
40.7
15.8
26.5
40.0
37.2
38.7
35.5
34.5
41.0
24.5
40.2
22.9
53.1
60.1
44.2
59.0
53.4
37.5
31.4
32.7
89.9
39.0
32.3
52.8
36.1
38.9
68.3
39.6
64.4
62.0
30.8
47.7
50.4
56.3
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
ACM
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
ACM
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
146
161
45.2
39.1
IEEE
IEEE
151
193
112
253
192
41.7
32.6
55.4
22.9
30.2
IEEE
IEEE
IEEE
IEEE
IEEE
ACM
ACM
ACM
ACM
ACM
CMP MEDIA
ACM
ACM
LUCENT TECHNOLOGIES
ACM
IEEE
ACM
ELSEVIER SCIENCE
ACM
ACM
ACM
ACM
ACM
ACM
ELSEVIER SCIENCE
ACM
ACM
ACM
ACM
AMER INST CHEMICAL ENGINEERS
ACM
ACM
IEEE
CMP MEDIA
IEE
ELSEVIER SCIENCE
IEE
LUCENT TECHNOLOGIES
ACM
ELSEVIER SCIENCE
IECE
ACM
ACM
ACM
AMER INST PHYSICS
ELSEVIER SCIENCE
AUDIO ENGINEERING SOC
ELSEVIER SCIENCE
ACOUSTICAL SOC AMER
AMER INST PHYSICS
MILLER FREEMAN
ACOUSTICAL SOC AMER
AMER INST PHYSICS
ACM
IEE
ACM
ACM
44
45
University of California
Enterasys Networks Inc.
66
63
46
47
48
49
50
Lockheed Martin Corp.
Unisys Corp
STMicroelectronics N.V.
EMC Corp
Science Applications Int'l
63
63
62
58
58
% IEEE
Refs
Note: The Table Above Represents Data Collected From 1983-2003
The Effect of IEEE Publications on the Hewlett-Packard Co. (HP) Patent Portfolio
-9-
#
Refs
%
Refs
688
150
346
215
107
22
37
56
36
42
204
141
38
41
60
78
43
31
92
21
60
20
11
21
15
11
31
110
28
1
20
17
11
51
16
11
13
9
8
23
7
23
10
15.0
8.7
14.4
12.9
10.8
4.4
6.9
10.4
7.2
7.9
15.8
18.3
7.5
7.8
12.1
16.0
8.6
7.5
13.5
5.5
9.3
7.4
4.6
6.5
7.1
4.7
10.5
31.4
8.5
0.8
7.5
5.8
6.2
20.2
7.4
9.2
6.3
7.6
6.6
9.7
4.7
17.3
8.4
13
12
8.9
7.5
14
60
8
37
35
9.3
31.1
7.1
14.6
18.2
Top 50 Organizations That Cite IEEE
in Telecommunications Patents
Organization
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Lucent Technologies
Motorola Inc
Ericsson (LM) Telephone Co Inc
Texas Instruments Incorporated
NEC Corporation
IBM
Deutsche Telekom AG
Koninklijke Philips Electronics N.V.
General Electric Co
Matsushita Electric Industrial Co Ltd
Hitachi Ltd
Alcatel
Toshiba Corporation
Siemens AG
Fujitsu Limited
Sony Corporation
InterDigital Communications Corp.
Nortel Networks Corp
Hewlett-Packard Company
Mitsubishi Electric Corp
Raytheon Company
Science Applications Int'l
Verizon Communications
MIT/Mass Inst of Technology
Analog Devices Inc
British Telecommunications PLC
Intel Corp
Thomson
PARKERVISION, INC.
Thales Group
Sprint Corp
Advanced Micro Devices Inc.
Canon Inc
Qualcomm Inc
National Semiconductor Corporation
A T & T Corp.
Altera Corp.
STMicroelectronics N.V.
Nippon Telegraph and Telephone Corp.
Micron Technology, Inc.
Cirrus Logic Inc.
Actel Corp.
Northrop Grumman Corporation
Nokia Group
General Motors Corporation
Sun Microsystems Inc
US Navy
Microsoft Corp
Optex Corp.
Lockheed Martin Corp.
# IEEE
Refs
# Total
Science
Refs
2349
1261
1120
823
713
678
672
549
511
503
493
472
463
423
412
399
394
379
362
339
336
316
311
299
272
258
249
243
240
236
230
225
215
211
208
205
204
178
170
167
150
149
146
145
144
134
133
132
132
130
4543
1747
1741
1010
1265
1325
861
1041
900
1113
1002
1185
837
1063
922
867
657
661
1001
596
749
545
521
676
360
691
348
398
534
520
329
391
871
303
303
491
431
289
340
299
233
213
326
274
248
215
393
274
173
320
% IEEE
Refs
51.7
72.2
64.3
81.5
56.4
51.2
78.0
52.7
56.8
45.2
49.2
39.8
55.3
39.8
44.7
46.0
60.0
57.3
36.2
56.9
44.9
58.0
59.7
44.2
75.6
37.3
71.6
61.1
44.9
45.4
69.9
57.5
24.7
69.6
68.6
41.8
47.3
61.6
50.0
55.9
64.4
70.0
44.8
52.9
58.1
62.3
33.8
48.2
76.3
40.6
Note: The Table Above Represents Data Collected From 1983-2003
The Effect of IEEE Publications on the Hewlett-Packard Co. (HP) Patent Portfolio
-10-
Top
Referenced
Publisher
Second
Most Referenced
Publisher
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEEE
IEE
IEE
L M ERICSSON
IEE
IEE
IBM CORP
ELSEVIER SCIENCE
IEE
SOC MOTION PICTURE TV ENG INC
ELSEVIER SCIENCE
ELSEVIER SCIENCE
IEE
IEE
IEE
IEE
SOC MOTION PICTURE TV ENG INC
LUCENT TECHNOLOGIES
IEE
IEE
SOC MOTION PICTURE TV ENG INC
AMER INST PHYSICS
IEE
IEE
OPTICAL SOC AMER
IEE
IEE
IEE
ELSEVIER SCIENCE
IEE
IEE
IEE
IEE
AMER INST PHYSICS
IEE
PENTON
AT&T
ACM
IEE
IEE
IBM CORP
IEE
TAYLOR & FRANCIS
OPTICAL SOC AMER
IEE
AMER INST PHYSICS
JOHN WILEY & SONS
AMER INST PHYSICS
ACM
IBM CORP
AMER INST PHYSICS
#
Refs
%
Refs
402
105
84
26
96
90
68
77
112
64
52
168
42
97
109
60
37
45
43
32
64
54
53
47
25
134
10
17
151
33
25
49
97
18
21
49
61
23
47
33
23
9
30
24
11
8
53
29
15
40
8.8
6.0
4.8
2.6
7.6
6.8
7.9
7.4
12.4
5.8
5.2
14.2
5.0
9.1
11.8
6.9
5.6
6.8
4.3
5.4
8.5
9.9
10.2
7.0
6.9
19.4
2.9
4.3
28.3
6.3
7.6
12.5
11.1
5.9
6.9
10.0
14.2
8.0
13.8
11.0
9.9
4.2
9.2
8.8
4.4
3.7
13.5
10.6
8.7
12.5
For more information:
IEEE
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Piscataway, NJ 08854
www.ieee.org/patentcitations
431-J 12/04