Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H01K 1/62

One or more circuit elements structurally associated with the lamp

Introduced: September 1968

Full Title

Details > One or more circuit elements structurally associated with the lamp

Of 5 combined children, 4 exist in both systems.

1 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

Navigate with arrow keys, Enter to open

  • H01K 1/625 CPC only CPC only
  • H01K 1/64 with built-in switch IPC+CPC Available in IPC and CPC
  • H01K 1/66 with built-in fuse IPC+CPC Available in IPC and CPC
  • H01K 1/68 with built-in spark gap IPC+CPC Available in IPC and CPC
  • H01K 1/70 with built-in short-circuiting device, e.g. for serially connected lamps 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