DIFF Subgroup
H01R 39/02 Details
Introduced: September 1968
Full Title
Rotary current collectors, distributors or interrupters > Details
Of 15 combined children, 14 exist in both systems.
1 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H01R 39/04 Commutators (wherein the segments are formed by extensions of dynamo-electric machine winding H02K) +1 CPC IPC+CPC Available in IPC and CPC
- H01R 39/18 Contacts for co-operation with commutator or slip-ring, e.g. contact brush IPC+CPC Available in IPC and CPC
- H01R 39/46 Auxiliary means for improving current transfer, or for reducing or preventing sparking or arcing IPC+CPC Available in IPC and CPC
- H01R 39/56 Devices for lubricating or polishing slip-rings or commutators during operation of the collector IPC+CPC Available in IPC and CPC
- H01R 39/58 Means structurally associated with the current collector for indicating condition thereof, e.g. for indicating brush wear IPC+CPC Available in IPC and CPC
- H01R 39/59 Means structurally associated with the brushes for interrupting current (H01R39/58 takes precedence) since 1985 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class H01,2013–2023, worldwide · Source: EPO PATSTAT
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
- SAMSUNG ELECTRONICS COMPANY KR 42,206
- LG CHEM KR 21,383
- APPLIED MATERIALS US 20,441
- LG ENERGY SOLUTION KR 20,279
- SAMSUNG DISPLAY KR 19,725
- CHINESE ACADEMY OF SCIENCES 19,400
- TOYOTA MOTOR CORPORATION 18,819
- SGCC(STATE GRID CORPORATION OF CHINA) 18,082
- TOKYO ELECTRON JP 17,634
Top Applicants (CPC)
Class H01,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 37,897
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
- APPLIED MATERIALS US 21,640
- LG ENERGY SOLUTION KR 20,770
- LG CHEM KR 19,835
- TOKYO ELECTRON JP 18,519
- ROBERT BOSCH DE 14,595
- INTEL CORPORATION US 13,580
- MURATA MANUFACTURING COMPANY JP 12,151
- SAMSUNG SDI COMPANY KR 12,080