comprising polysulphones; polysulfides

comprising polysulphones; polysulfides · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB32B27/286
Official title{comprising polysulphones; polysulfides}
Display labelcomprising polysulphones; polysulfides
Total patents1,710

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
201568
201679
2017146
2018208
2019215
2020234
2021217
2022184
2023155
2024114
202576
202614

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 B32B27/286?
CPC B32B27/286 is the Cooperative Patent Classification code for “comprising polysulphones; polysulfides.”
How many patents are filed under CPC B32B27/286 (comprising polysulphones; polysulfides)?
Our database includes 1,710 publications tagged with this CPC code.
Is patent activity under CPC B32B27/286 growing?
Publication counts under this code: 114 in 2024 vs 76 in 2025 (latest complete years).