Pocket lamps

Pocket lamps · Cooperative Patent Classification (CPC)

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

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeF21L4/045
Official title{Pocket lamps}
Display labelPocket lamps
Total patents112

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20156
201623
201712
201813
201913
20205
20214
202211
20239
20247
20258
20261

Representative patents

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

Frequently asked questions

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

What is CPC F21L4/045?
CPC F21L4/045 is the Cooperative Patent Classification code for “Pocket lamps.”
How many patents are filed under CPC F21L4/045 (Pocket lamps)?
Our database includes 112 publications tagged with this CPC code.
Is patent activity under CPC F21L4/045 growing?
Publication counts under this code: 7 in 2024 vs 8 in 2025 (latest complete years).