CPC Main Group Additional Only
F21V 2200/00 Use of light guides, e.g. fibre optic devices, in lighting devices or systems
4 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- F21V 2200/10 of light guides of the optical fibres type
- F21V 2200/20 of light guides of a generally planar shape
- F21V 2200/30 of light guides doped with fluorescent agents
- F21V 2200/40 of hollow light guides
Top Applicants
Top 10 applicants by patent filingsfor 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