by halogen atoms, by trihalomethyl, nitro or nitroso groups, or by singly-bound oxygen atoms

by halogen atoms, by trihalomethyl, nitro or nitroso groups, or by singly-bound oxygen atoms · 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 codeC07C217/20
Official titleby halogen atoms, by trihalomethyl, nitro or nitroso groups, or by singly-bound oxygen atoms
Display labelby halogen atoms, by trihalomethyl, nitro or nitroso groups, or by singly-bound oxygen atoms
Total patents57

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
201511
20165
20174
20184
20195
20205
20217
20223
20235
20242
20256

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 C07C217/20?
CPC C07C217/20 is the Cooperative Patent Classification code for “by halogen atoms, by trihalomethyl, nitro or nitroso groups, or by singly-bound oxygen atoms.”
How many patents are filed under CPC C07C217/20 (by halogen atoms, by trihalomethyl, nitro or nitroso groups, or by singly-bound oxygen atoms)?
Our database includes 57 publications tagged with this CPC code.
Is patent activity under CPC C07C217/20 growing?
Publication counts under this code: 2 in 2024 vs 6 in 2025 (latest complete years).