IPC Main Group
F21V 29/00 Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
Introduced: September 1968
Last revised: January 2015
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- LIGHTING
- Subclass:
- FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
5 direct subcodes
Child Classifications
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- F21V 29/1 Arrangement of heat-generating components to reduce thermal damage, e.g. by distancing heat-generating components from other components to be protected
- F21V 29/15 Thermal insulation
- F21V 29/5 Cooling arrangements
- F21V 29/85 characterised by the material
- F21V 29/9 Heating arrangements
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