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PCE
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DIFF Subgroup
H01H 50/36

Stationary parts of magnetic circuit, e.g. yoke

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Details of electromagnetic relays > Magnetic circuit arrangements > Stationary parts of magnetic circuit, e.g. yoke

CPC:

Details of electromagnetic relays ( electric circuit arrangements H01H47/00; details of electrically-operated selector switches H01H63/00) > Magnetic circuit arrangements > Stationary parts of magnetic circuit, e.g. yoke

Of 6 combined children, 3 exist in both systems.

3 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

Child Classifications

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  • H01H 2050/362 2nd only CPC only CPC only
  • H01H 2050/365 2nd only CPC only CPC only
  • H01H 2050/367 2nd only CPC only CPC only
  • H01H 50/38 Part of main magnetic circuit shaped to suppress arcing between the contacts of the relay IPC+CPC Available in IPC and CPC
  • H01H 50/40 Branched or multiple-limb main magnetic circuits IPC+CPC Available in IPC and CPC
  • H01H 50/42 Auxiliary magnetic circuits, e.g. for maintaining armature in, or returning armature to, position of rest, for damping or accelerating movement 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