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PCE
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DIFF Subgroup
H01H 21/54

Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch

Introduced: September 1968

Title

Titles differ between systems:

IPC: Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch, sectionalisers

CPC: Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch

Full Title

Full titles differ between systems:

IPC:

Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand > Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch, sectionalisers

CPC:

Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand (tumbler or rocker switches H01H23/00; switches having an operating part movable angularly in more than one plane H01H25/04) > Lever switches with blade-type contact co-operating with one or two spring-clip contacts, e.g. knife switch

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

Child Classifications

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  • H01H 21/56 making contact in one position only IPC+CPC Available in IPC and CPC
  • H01H 21/58 Change-over switches without stable intermediate position IPC+CPC Available in IPC and CPC
  • H01H 21/60 Change-over switches with stable intermediate position 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