Cyclic ethers having no atoms other than carbon and hydrogen outside the ring

Cyclic ethers having no atoms other than carbon and hydrogen outside the ring · 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 codeC08G65/06
Official titleCyclic ethers having no atoms other than carbon and hydrogen outside the ring
Display labelCyclic ethers having no atoms other than carbon and hydrogen outside the ring
Total patents27

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20153
20164
20171
20183
20195
20202
20212
20222
20233
20241
20251

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 C08G65/06?
CPC C08G65/06 is the Cooperative Patent Classification code for “Cyclic ethers having no atoms other than carbon and hydrogen outside the ring.”
How many patents are filed under CPC C08G65/06 (Cyclic ethers having no atoms other than carbon and hydrogen outside the ring)?
Our database includes 27 publications tagged with this CPC code.
Is patent activity under CPC C08G65/06 growing?
Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).