Oxymethylene-copolymer manufacturing method
US-11965058-B2 · Apr 23, 2024 · US
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Post-polymerisation treatments
Post-polymerisation treatments · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08G2/28 |
| Official title | Post-polymerisation treatments |
| Display label | Post-polymerisation treatments |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 5 |
| 2018 | 3 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Oxymethylene copolymer resin composition and method for producing same
US-11898033-B2 · Feb 13, 2024 · US
Ammonia and ammonium hydroxide stabilizers for paraformaldehyde
US-11897996-B2 · Feb 13, 2024 · US
Oxymethylene copolymer resin composition and method for producing same
US-2023120116-A1 · Apr 20, 2023 · US
Process for removal of volatile compounds from tackifiers
US-11498997-B2 · Nov 15, 2022 · US
Ammonia and ammonium hydroxide stabilizers for paraformaldehyde
US-2022033559-A1 · Feb 3, 2022 · US
Method for the production of stable polyoxymethylene copolymers (cpom)
US-2021292461-A1 · Sep 23, 2021 · US
Process for producing oxymethylene copolymer
US-10975189-B2 · Apr 13, 2021 · US
Process for removal of volatile compounds from tackifiers
US-2021079150-A1 · Mar 18, 2021 · US
Oxymethylene-copolymer manufacturing method
US-2020362085-A1 · Nov 19, 2020 · US
Process for producing oxymethylene copolymer
US-2020216598-A1 · Jul 9, 2020 · US
Process for production of oxymethylene copolymer
US-10138321-B2 · Nov 27, 2018 · US
Process for production of oxymethylene copolymer
US-2018265617-A1 · Sep 20, 2018 · US
Method for producing oxymethylene copolymer
US-9902797-B2 · Feb 27, 2018 · US
Method for producing polyacetal copolymer
US-9745400-B2 · Aug 29, 2017 · US
Process for producing polyacetal copolymer
US-9695265-B2 · Jul 4, 2017 · US
Production method for polyacetal copolymer
US-9657136-B2 · May 23, 2017 · US
Method for producing polyacetal copolymer
US-2017114176-A1 · Apr 27, 2017 · US
Process for producing polyacetal copolymer
US-2017073451-A1 · Mar 16, 2017 · US
Production method for polyacetal copolymer
US-2016280852-A1 · Sep 29, 2016 · US