by hydrogenation of unsaturated carbon-to-carbon bonds

by hydrogenation of unsaturated carbon-to-carbon bonds · 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 codeC07C67/303
Official titleby hydrogenation of unsaturated carbon-to-carbon bonds
Display labelby hydrogenation of unsaturated carbon-to-carbon bonds
Total patents198

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
201516
201627
201717
201831
201920
202023
202115
202221
20236
20245
202513
20264

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 C07C67/303?
CPC C07C67/303 is the Cooperative Patent Classification code for “by hydrogenation of unsaturated carbon-to-carbon bonds.”
How many patents are filed under CPC C07C67/303 (by hydrogenation of unsaturated carbon-to-carbon bonds)?
Our database includes 198 publications tagged with this CPC code.
Is patent activity under CPC C07C67/303 growing?
Publication counts under this code: 5 in 2024 vs 13 in 2025 (latest complete years).