REQUEST FOR REVISION OF THE IPC (AL)
Class(es) or Subclass(es): H02M 1/00, 7/00
1. Demarcation of the area to be revised: H02M 1/00, 7/00
2. Reasons for the request:
(a) Subdivision of IPC groups having an excessive file size and a high rate of growth
of the PCT minimum documentation
(b) Change of the classification structure where it has become inefficient for
searching
(c) Clarification of wordings in order to improve consistency in classifying or to
avoid overlap with other places of the IPC
[X]
[ ]
[ ]
Explanation of above:
In order to cope with the growing number of documents on H02M, we propose a new
classification scheme.
This revision request is based on the scheme agreement of Trilateral Harmony project. This
request is only for revision of the IPC-AL and doesn’t make an impact on the IPC-CL.
3. For requests under 2(a), numerical data (PCT min. one document per family):
(a) File size:
[48,000]
(b) Rate of growth (applications filed in)
(c) Average size of new subgroups:
(d) Proposal tested ?
YES [ ]
4. Detailed proposal:
2002: [3,900]
[570]
NO [X]
2003: [3,900]
Submitted herewith
We are prepared to elaborate it
We are not in a position to elaborate it
5. General outline, possible solutions, options ,etc.:
Basically, this revision is subdivisions of the field H02M1/ and H02M7/.
Please see the scheme and definitions in details.
Proposing Office: JPO
Date: April 28, 2006
Signature:
[X]
[ ]
[ ]
Proposal
C
N
N
N
N
H02M1/00 <unchanged>
H02M1/32 . Means for protecting converters
H02M1/34 . Means for starting or stopping converters
H02M1/36 . Means for preventing simultaneous conduction of switches
H02M1/38 . Means for preventing magnetic saturation
C
N
H02M7/48 <unchanged>
H02M7/483 .... Converters with outputs that each can have more than two
voltages levels
H02M7/486 ..... Neutral point cramped inverters
H02M7/489 ..... Combination of output voltage waveforms from a plurality of
converters
H02M7/492 .... the static converters arranged for operation in parallel
H02M7/495 .... sinusoidal output voltages being obtained by combination of
more voltages being out of phase
H02M7/498 .... sinusoidal output voltages being obtained by the combination of
more voltages having different amplitude and width
N
N
N
N
N
C
N
H02M7/515 <unchanged>
H02M7/516 ...... Self-oscillating arrangements
C
N
N
N
H02M7/537 ..... using semiconductor devices only, e.g. single switched pulse
inverters
H02M7/538 <unchanged>
H02M7/53808 ....... Parallel type
H02M7/53815 ........ using a single commutation path
H02M7/53822 ........Control circuits
C
N
H02M 7/5387 ...... <unchanged>
H02M7/5388 ....... with asymmetrical configuration of switches