Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H01H 47/22

for supplying energising current for relay coil

Introduced: September 1968

Full Title

Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current > for supplying energising current for relay coil

Of 8 combined children, 6 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

Navigate with arrow keys, Enter to open

  • H01H 47/223 CPC only CPC only
  • H01H 47/226 CPC only CPC only
  • H01H 47/24 having light-sensitive input IPC+CPC Available in IPC and CPC
  • H01H 47/26 having thermo-sensitive input IPC+CPC Available in IPC and CPC
  • H01H 47/34 Energising current supplied by magnetic amplifier IPC+CPC Available in IPC and CPC
  • H01H 47/36 Relay coil or coils forming part of a bridge circuit 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