Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
F21S 41/64

by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices

Introduced: January 2018

Full Title

Full titles differ between systems:

IPC:

Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps > characterised by a variable light distribution > by acting on refractors, filters or transparent cover plates > by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices

CPC:

Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps (reversing lights F21S43/00) > characterised by a variable light distribution > by acting on refractors, filters or transparent cover plates > by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

Navigate with arrow keys, Enter to open