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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 39/32 Connections of conductor to commutator segment IPC+CPC Available in IPC and CPC
  • H01R 39/34 Connections of conductor to slip-ring IPC+CPC Available in IPC and CPC
  • H01R 39/36 Connections of cable or wire to brush IPC+CPC Available in IPC and CPC
  • H01R 39/42 Devices for lifting brushes IPC+CPC Available in IPC and CPC
  • H01R 39/44 Devices for shifting brushes 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

  1. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
  2. SAMSUNG ELECTRONICS COMPANY KR 42,206
  3. LG CHEM KR 21,383
  4. APPLIED MATERIALS US 20,441
  5. LG ENERGY SOLUTION KR 20,279
  6. SAMSUNG DISPLAY KR 19,725
  7. CHINESE ACADEMY OF SCIENCES 19,400
  8. TOYOTA MOTOR CORPORATION 18,819
  9. SGCC(STATE GRID CORPORATION OF CHINA) 18,082
  10. TOKYO ELECTRON JP 17,634

Top Applicants (CPC)

Class H01,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 37,897
  2. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
  3. APPLIED MATERIALS US 21,640
  4. LG ENERGY SOLUTION KR 20,770
  5. LG CHEM KR 19,835
  6. TOKYO ELECTRON JP 18,519
  7. ROBERT BOSCH DE 14,595
  8. INTEL CORPORATION US 13,580
  9. MURATA MANUFACTURING COMPANY JP 12,151
  10. SAMSUNG SDI COMPANY KR 12,080