DIFF Subgroup
B23H 7/26 Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
Introduced: January 1985
Full Title
Processes or apparatus applicable to both electrical discharge machining and electrochemical machining > Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
Of 4 combined children, 3 exist in both systems.
1 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1985.
Child Classifications
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- B23H 7/28 Moving electrode in a plane normal to the feed direction, e.g. orbiting since 1985 IPC+CPC Available in IPC and CPC
- B23H 7/30 Moving electrode in the feed direction (B23H7/32 takes precedence) since 1985 IPC+CPC Available in IPC and CPC
- B23H 7/32 Maintaining desired spacing between electrode and workpiece since 1985 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B23,2013–2023, worldwide · Source: EPO PATSTAT
- ITW (ILLINOIS TOOL WORKS) US 3,407
- FANUC JP 3,120
- DISCO ABRASIVE SYSTEM 2,777
- HAN'S LASER TECHNOLOGY INDUSTRY GROUP COMPANY 2,629
- ROBERT BOSCH DE 2,468
- FANUC 2,273
- DISCO CORPORATION JP 2,267
- GE (GENERAL ELECTRIC COMPANY) US 1,611
- CHINESE ACADEMY OF SCIENCES 1,534
- ISCAR IL 1,499
Top Applicants (CPC)
Class B23,2013–2023, worldwide · Source: EPO PATSTAT
- ITW (ILLINOIS TOOL WORKS) US 3,642
- DISCO CORPORATION JP 3,316
- FANUC JP 3,111
- ROBERT BOSCH DE 2,711
- FANUC 2,163
- GE (GENERAL ELECTRIC COMPANY) US 2,113
- ISCAR IL 1,516
- SIEMENS DE 1,459
- LINCOLN GLOBAL US 1,433
- KOBE STEEL JP 1,423