PatentsDB

Copolymers of isobutene; Butyl rubber {; Homo- or copolymers of other iso-olefines}

Copolymers of isobutene; Butyl rubber {; Homo- or copolymers of other iso-olefines} · 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 codeC09D123/22
Official titleCopolymers of isobutene; Butyl rubber {; Homo- or copolymers of other iso-olefines}
Display labelCopolymers of isobutene; Butyl rubber {; Homo- or copolymers of other iso-olefines}
Total patents59

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
201514
20164
20178
20185
20194
20201
20212
20223
20236
20247
20254
20261

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 C09D123/22?
CPC C09D123/22 is the Cooperative Patent Classification code for “Copolymers of isobutene; Butyl rubber {; Homo- or copolymers of other iso-olefines}.”
How many patents are filed under CPC C09D123/22 (Copolymers of isobutene; Butyl rubber {; Homo- or copolymers of other iso-olefines})?
Our database includes 59 publications tagged with this CPC code.
Is patent activity under CPC C09D123/22 growing?
Publication counts under this code: 7 in 2024 vs 4 in 2025 (latest complete years).