DIFF Main Group
F21V 19/00 Fastening of light sources or lamp holders (fastening electric light source solely by the coupling device H01R33/00 )
Introduced: September 1968
Title
Titles differ between systems:
IPC: Fastening of light sources or lamp holders
CPC: Fastening of light sources or lamp holders (fastening electric light source solely by the coupling device H01R33/00 )
Full Title
Full titles differ between systems:
IPC:
Fastening of light sources or lamp holders
CPC:
Fastening of light sources or lamp holders (fastening electric light source solely by the coupling device H01R33/00 )
CPC subdivides this area 2x more granularly than IPC with 4 additional codes.
4 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- F21V 19/04 with provision for changing light source, e.g. turret +1 CPC IPC+CPC Available in IPC and CPC
- F21V 19/06 Fastening incandescent mantles or other incandescent bodies to lamp parts; Suspension devices for incandescent mantles or other incandescent bodies (arrangements of mantles or other incandescent bodies on burners F21V36/00) IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class F21,2013–2023, worldwide · Source: EPO PATSTAT
- PANASONIC INTELLECTUAL PROPERTY 3,883
- VALEO VISION FR 2,797
- KOITO MANUFACTURING COMPANY 2,531
- OPPLE LIGHTING COMPANY 2,343
- SIGNIFY HOLDING NL 2,275
- TOSHIBA LIGHTING & TECHNOLOGY CORPORATION 1,982
- KOITO MANUFACTURING COMPANY JP 1,766
- LG INNOTEK COMPANY KR 1,651
- SUZHOU OPPLE LIGHTING COMPANY 1,633
- MITSUBISHI ELECTRIC CORPORATION 1,591
Top Applicants (CPC)
Class F21,2013–2023, worldwide · Source: EPO PATSTAT
- VALEO VISION FR 2,820
- SIGNIFY HOLDING NL 2,374
- KOITO MANUFACTURING COMPANY JP 1,890
- KOITO MANUFACTURING COMPANY 1,722
- LG INNOTEK COMPANY KR 1,624
- OSRAM DE 1,507
- LG ELECTRONICS KR 1,458
- PANASONIC INTELLECTUAL PROPERTY JP 1,433
- ZUMTOBEL LIGHTING AT 1,349
- PANASONIC INTELLECTUAL PROPERTY 1,275