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DIFF Subgroup
H01H 50/64

Driving arrangements between movable part of magnetic circuit and contact (structurally associated with contact spring sets H01H50/58)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Driving arrangements between movable part of magnetic circuit and contact

CPC: Driving arrangements between movable part of magnetic circuit and contact (structurally associated with contact spring sets H01H50/58)

Full Title

Full titles differ between systems:

IPC:

Details of electromagnetic relays > Driving arrangements between movable part of magnetic circuit and contact

CPC:

Details of electromagnetic relays ( electric circuit arrangements H01H47/00; details of electrically-operated selector switches H01H63/00) > Driving arrangements between movable part of magnetic circuit and contact (structurally associated with contact spring sets H01H50/58)

Of 10 combined children, 5 exist in both systems.

5 codes are CPC-only extensions.

Child Classifications

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  • H01H 50/647 CPC only CPC only
  • H01H 50/648 CPC only CPC only
  • H01H 50/66 with lost motion IPC+CPC Available in IPC and CPC
  • H01H 50/68 with snap action IPC+CPC Available in IPC and CPC
  • H01H 50/70 operating contact momentarily during stroke of armature IPC+CPC Available in IPC and CPC
  • H01H 50/72 for mercury contact 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