Alkyl ethers

Alkyl ethers · 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 codeC09J101/28
Official titleAlkyl ethers
Display labelAlkyl ethers
Total patents45

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20154
20161
20172
20185
20195
20209
20212
20221
20235
20247
20254

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 C09J101/28?
CPC C09J101/28 is the Cooperative Patent Classification code for “Alkyl ethers.”
How many patents are filed under CPC C09J101/28 (Alkyl ethers)?
Our database includes 45 publications tagged with this CPC code.
Is patent activity under CPC C09J101/28 growing?
Publication counts under this code: 7 in 2024 vs 4 in 2025 (latest complete years).