by addition or substitution reactions, without increasing the number of carbon atoms in the carbon skeleton of the acid

by addition or substitution reactions, without increasing the number of carbon atoms in the carbon skeleton of the acid · 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 codeC07C227/06
Official titleby addition or substitution reactions, without increasing the number of carbon atoms in the carbon skeleton of the acid
Display labelby addition or substitution reactions, without increasing the number of carbon atoms in the carbon skeleton of the acid
Total patents67

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
201512
20168
20175
20188
20199
202011
20214
20225
20233
20252

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 C07C227/06?
CPC C07C227/06 is the Cooperative Patent Classification code for “by addition or substitution reactions, without increasing the number of carbon atoms in the carbon skeleton of the acid.”
How many patents are filed under CPC C07C227/06 (by addition or substitution reactions, without increasing the number of carbon atoms in the carbon skeleton of the acid)?
Our database includes 67 publications tagged with this CPC code.
Is patent activity under CPC C07C227/06 growing?
Publication counts under this code: 3 in 2023 vs 2 in 2025 (latest complete years).