EPO – Principal Directorate Patent Grant Automation – Directorate Classification
Project: D301
Subject: IPC Revision WG - Definition
Project
IPC: H01T
Proposal Removal of Non-Limiting References
23. July 2013
Ref.
Annex 2
Proposal of removal of non-limiting references (25.04.2013)
Annex 3
JP comments (19.06.2013)
Comments
After WG 29, comments have been received by JP (annex 3). R agrees with JP
(annex 3) that the reference after the subclass title pointing to H05F (in fact it is
group H05F 3/04) is informative. The NLRL has been updated accordingly.
The attached table gives an overview for defining whether a reference is limiting or
informative. Changes with respect to annex 2 are highlighted in yellow.
Place
Refers to
Category
Proposed Action
H01T
B23H
informative
relocate to definitions
B23K
informative
relocate to definitions
H01J 17/00
informative
relocate to definitions
H05B 31/00
informative
relocate to definitions
H02H
limiting
add to the scheme
H05F 3/04
informative
add to the definitions
F02P
informative
add to the definitions
F23Q
informative
add to the definitions
H01C
informative
add to the definitions
H01H
informative
add to the definitions
H01T 1/14
H01T 1/15
H01T 1/16
H01T 1/18
Precedence
Precedence
Precedence
keep
keep
keep
H01T 1/24
H01T 1/22
Precedence
keep
H01T 2/00
H01T 15/00
limiting
keep
H01T 4/00
H01T 2/00
Precedence
keep
H02H 9/06
limiting
keep
H01C 7/12
informative
add to the definitions
H01T 4/02
H01T 1/00
informative
relocate to definitions
H01T 4/04
H01T 4/06
Precedence
keep
H01T 4/08
H01H 9/14
informative
relocate to definitions
H01H 85/44
informative
relocate to definitions
H01T 4/10
H01T 13/00
informative
relocate to definitions
H01T 4/14
H01B 17/46
limiting
keep
H01T 7/00
F02P 7/02
informative
add to the definitions
H01T 13/00
F02M 57/06
informative
add to the definitions
F02P 3/02
informative
add to the definitions
F02P 23/04
informative
add to the definitions
F23Q 7/00
informative
add to the definitions
H01F 38/12
informative
add to the definitions
H01T 13/22
H01T 13/46
limiting
keep
H01T 13/24
H01T 13/28
precedence
keep
H01T 13/38
H01B 3/00
informative
relocate to definitions
H01T 13/40
F02M 57/06
informative
relocate to definitions
F02P 13/00
informative
relocate to definitions
H01T 13/50
H01T 13/52
precedence
keep
H01T 13/58
F02P 17/12
limiting
keep
H01T 14/00
H01T 19/00
limiting
keep
H01T 15/00
F02P
limiting
keep
F23Q
limiting
keep
H02H 9/06
limiting
keep
G03G 15/02
limiting
keep
B29C 59/10
Informative
add to the definitions
C01B 13/11
Informative
add to the definitions
H05F 3/04
Informative
add to the definitions
H01T 13/14
limiting
keep
B24C 3/34
limiting
keep
H01T 13/26
limiting
keep
H01T 19/00
H01T 21/04
H01T 21/06
H01T 23/00
H01J 33/00
informative
relocate to definitions
H05H
informative
relocate to definitions
A61N 1/44
informative
add to the definitions
B03C 3/68
informative
add to the definitions
Scheme Proposal
C
H01T
SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS;
SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE
INTRODUCED IN NON-ENCLOSED GASES (working of metal by the
action of a high concentration of electric current B23H; welding, e.g. arc
welding, electron beam welding or electrolytic welding B23K; gas-filled
discharge tubes with solid cathode H01J17/00; electric arc lamps
H05B31/00 overvoltage protection circuits H02H )
C
4/02
• Details (of spark gaps H01T1/00)
C
4/08
• structurally associated with protected apparatus (with switches
H01H9/14; with fuses H01H85/44)
C
4/10
• having a single gap or a plurality of gaps in parallel (sparking plugs
H01T 13/00 )
C
13/38
• • Selection of materials for insulation (in general H01B3/00)
C
13/40
• structurally combined with other devices (combined or associated with
fuel injectors F02M57/06; structurally combined with other parts of internalcombustion engines F02P13/00)
C
23/00
Apparatus for generating ions to be introduced into nonenclosed gases,
e.g. into the atmosphere (discharge tubes with provision for emergence of
ions from the vessel H01J33/00; generating plasma H05H)
CK
[End]