Chemical and biological integrated degradation process for polyethylene terephthalate (PET), for recycling pet
US-12559776-B2 · Feb 24, 2026 · US
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Polyanhydrides
Polyanhydrides · 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 | C08J2373/02 |
| Official title | Polyanhydrides |
| Display label | Polyanhydrides |
| Total patents | 15 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wrap film with polyisobutylene succinic anhydride
US-12344685-B2 · Jul 1, 2025 · US
Chemical and biological integrated degradation process for polyethylene terephthalate (pet), for recycling pet
US-2024229084-A9 · Jul 11, 2024 · US
Bioderived recyclable epoxy-anhydride thermosetting polymers and resins
US-11970575-B2 · Apr 30, 2024 · US
Chemical and biological integrated degradation process for polyethylene terephthalate (pet), for recycling pet
US-2024132922-A1 · Apr 25, 2024 · US
Wrap Film With Polyisobutylene Succinic Anhydride
US-2023151131-A1 · May 18, 2023 · US
Wrap film with polyisobutylene succinic anhydride
US-11530282-B2 · Dec 20, 2022 · US
Bioderived recyclable epoxy-anhydride thermosetting polymers and resins
US-2022106442-A1 · Apr 7, 2022 · US
Wrap Film With Polyisobutylene Succinic Anhydride
US-2021130516-A1 · May 6, 2021 · US
Fiber-reinforced plastic molding material, method for producing same, and molded article
US-10590250-B2 · Mar 17, 2020 · US
Coating layers of a nanocomposite comprising a nano-cellulose material and nanoparticles
US-10294383-B2 · May 21, 2019 · US
Coating layers of a nanocomposite comprising a nano-cellulose material and nanoparticles
US-2018194960-A1 · Jul 12, 2018 · US
Fiber-reinforced plastic molding material, method for producing same, and molded article
US-2018079879-A1 · Mar 22, 2018 · US
Coating layers of a nanocomposite comprising a nano-cellulose material and nanoparticles
US-2015017432-A1 · Jan 15, 2015 · US
Antimicrobial polyanhydride nanoparticles
US-8927024-B1 · Jan 6, 2015 · US