Phosphinous compounds, e.g. R2=P—OR'

Phosphinous compounds, e.g. R2=P—OR' · 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 codeC08K5/5377
Official titlePhosphinous compounds, e.g. R2=P—OR'
Display labelPhosphinous compounds, e.g. R2=P—OR'
Total patents29

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
20162
20171
20183
20193
20201
20213
20221
20236
20245
20252
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 C08K5/5377?
CPC C08K5/5377 is the Cooperative Patent Classification code for “Phosphinous compounds, e.g. R2=P—OR'.”
How many patents are filed under CPC C08K5/5377 (Phosphinous compounds, e.g. R2=P—OR')?
Our database includes 29 publications tagged with this CPC code.
Is patent activity under CPC C08K5/5377 growing?
Publication counts under this code: 5 in 2024 vs 2 in 2025 (latest complete years).