by reactions not affecting the number of carbon or of halogen atoms in the reaction

by reactions not affecting the number of carbon or of halogen atoms in the reaction · 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 codeC07C17/35
Official titleby reactions not affecting the number of carbon or of halogen atoms in the reaction
Display labelby reactions not affecting the number of carbon or of halogen atoms in the reaction
Total patents98

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
201514
201610
20178
20189
20198
202011
202110
202212
20235
20246
20254
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 C07C17/35?
CPC C07C17/35 is the Cooperative Patent Classification code for “by reactions not affecting the number of carbon or of halogen atoms in the reaction.”
How many patents are filed under CPC C07C17/35 (by reactions not affecting the number of carbon or of halogen atoms in the reaction)?
Our database includes 98 publications tagged with this CPC code.
Is patent activity under CPC C07C17/35 growing?
Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).