What is CPC F21S6/004?

CPC F21S6/004 is the Cooperative Patent Classification code for “with a lamp housing in direct contact with the floor or ground.”

How many patents are filed under CPC F21S6/004 (with a lamp housing in direct contact with the floor or ground)?

Our database includes 52 publications tagged with this CPC code.

Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).

with a lamp housing in direct contact with the floor or ground · 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	F21S6/004
Official title	{with a lamp housing in direct contact with the floor or ground}
Display label	with a lamp housing in direct contact with the floor or ground
Total patents	52

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

Filing activity over the last five years is declining.

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 F21S6/004?: CPC F21S6/004 is the Cooperative Patent Classification code for “with a lamp housing in direct contact with the floor or ground.”
How many patents are filed under CPC F21S6/004 (with a lamp housing in direct contact with the floor or ground)?: Our database includes 52 publications tagged with this CPC code.
Is patent activity under CPC F21S6/004 growing?: Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).