IPC Subgroup
F21L 4/02 characterised by provision of two or more light sources
Introduced: January 2000
Last revised: January 2006
Full Title
Electric lighting devices with self-contained electric batteries or cells > characterised by provision of two or more light sources
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- LIGHTING
- Subclass:
- LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
Top Applicants
Top 10 applicants by patent filingsfor 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