Bleaching agents

Bleaching agents · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC11D3/395
Official titleBleaching agents
Display labelBleaching agents
Total patents143

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
201510
201616
201712
201815
201928
202023
202112
20222
20237
20249
20257
20262

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 C11D3/395?
CPC C11D3/395 is the Cooperative Patent Classification code for “Bleaching agents.”
How many patents are filed under CPC C11D3/395 (Bleaching agents)?
Our database includes 143 publications tagged with this CPC code.
Is patent activity under CPC C11D3/395 growing?
Publication counts under this code: 9 in 2024 vs 7 in 2025 (latest complete years).