from lactams, cyclic ketones or cyclic oximes, e.g. by reactions involving Beckmann rearrangement

from lactams, cyclic ketones or cyclic oximes, e.g. by reactions involving Beckmann rearrangement · 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 codeC07C227/22
Official titlefrom lactams, cyclic ketones or cyclic oximes, e.g. by reactions involving Beckmann rearrangement
Display labelfrom lactams, cyclic ketones or cyclic oximes, e.g. by reactions involving Beckmann rearrangement
Total patents48

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
201512
20164
20172
20182
20203
20216
20223
20238
20243
20255

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 C07C227/22?
CPC C07C227/22 is the Cooperative Patent Classification code for “from lactams, cyclic ketones or cyclic oximes, e.g. by reactions involving Beckmann rearrangement.”
How many patents are filed under CPC C07C227/22 (from lactams, cyclic ketones or cyclic oximes, e.g. by reactions involving Beckmann rearrangement)?
Our database includes 48 publications tagged with this CPC code.
Is patent activity under CPC C07C227/22 growing?
Publication counts under this code: 3 in 2024 vs 5 in 2025 (latest complete years).