What is CPC F21L4/025?

CPC F21L4/025 is the Cooperative Patent Classification code for “the light sources being of different shape or type.”

How many patents are filed under CPC F21L4/025 (the light sources being of different shape or type)?

Our database includes 47 publications tagged with this CPC code.

Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).

the light sources being of different shape or type · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F21L4/025
Official title	{the light sources being of different shape or type}
Display label	the light sources being of different shape or type
Total patents	47

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is rapidly growing.

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.

Answers are generated from the same data shown on this page.

What is CPC F21L4/025?: CPC F21L4/025 is the Cooperative Patent Classification code for “the light sources being of different shape or type.”
How many patents are filed under CPC F21L4/025 (the light sources being of different shape or type)?: Our database includes 47 publications tagged with this CPC code.
Is patent activity under CPC F21L4/025 growing?: Publication counts under this code: 4 in 2024 vs 6 in 2025 (latest complete years).