by reaction with compounds containing phosphorus or sulfur

by reaction with compounds containing phosphorus or sulfur · 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 codeC08L23/32
Official titleby reaction with compounds containing phosphorus or sulfur
Display labelby reaction with compounds containing phosphorus or sulfur
Total patents42

Filing trend

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

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20154
20162
20174
20187
20195
20206
20213
20225
20232
20243
20251

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 C08L23/32?
CPC C08L23/32 is the Cooperative Patent Classification code for “by reaction with compounds containing phosphorus or sulfur.”
How many patents are filed under CPC C08L23/32 (by reaction with compounds containing phosphorus or sulfur)?
Our database includes 42 publications tagged with this CPC code.
Is patent activity under CPC C08L23/32 growing?
Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).