Isomerisation; Cyclisation

Isomerisation; Cyclisation · 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 codeC08F8/48
Official titleIsomerisation; Cyclisation
Display labelIsomerisation; Cyclisation
Total patents202

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
20159
201619
201718
201818
201921
202028
202130
202212
202315
202420
202510
20262

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 C08F8/48?
CPC C08F8/48 is the Cooperative Patent Classification code for “Isomerisation; Cyclisation.”
How many patents are filed under CPC C08F8/48 (Isomerisation; Cyclisation)?
Our database includes 202 publications tagged with this CPC code.
Is patent activity under CPC C08F8/48 growing?
Publication counts under this code: 20 in 2024 vs 10 in 2025 (latest complete years).