Processes for recovering dialkyl terephthalates from tetramethyl cyclobutanediol (tmcd)-containing polymers
US-2026071047-A1 · Mar 12, 2026 · US
by treatment with hydrocarbons or halogenated hydrocarbons
by treatment with hydrocarbons or halogenated hydrocarbons · 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 | C08J11/20 |
| Official title | by treatment with hydrocarbons or halogenated hydrocarbons |
| Display label | by treatment with hydrocarbons or halogenated hydrocarbons |
| Total patents | 60 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 10 |
| 2024 | 11 |
| 2025 | 11 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processes for recovering dialkyl terephthalates from polyester compositions
US-2026070868-A1 · Mar 12, 2026 · US
Chemical and biological integrated degradation process for polyethylene terephthalate (PET), for recycling pet
US-12559776-B2 · Feb 24, 2026 · US
Solvent removal in a process for recycling one or more polymers, such as polyurethanes, contained in a solid material
US-2026002011-A1 · Jan 1, 2026 · US
Decomposition of polyolefins
US-2025296900-A1 · Sep 25, 2025 · US
Copper-loaded two-dimensional silicon catalyst, preparation method thereof, and its application on solar-driven catalytic conversion of polyolefin plastics into hydrocarbons
US-2025262611-A1 · Aug 21, 2025 · US
Circular economy for plastic waste to polypropylene and base oil via refinery hydrocracking unit
US-12359135-B2 · Jul 15, 2025 · US
Value chain return process for the recovery of phosphorous ester-based flame retardants from polyurethane rigid foams
US-2025223418-A1 · Jul 10, 2025 · US
Circular economy for waste polystyrene via refinery fcc unit
US-2025215182-A1 · Jul 3, 2025 · US
Process for stable blend of polystyrene plastic with hydrocarbon feed for feeding to oil refinery units and process of preparing same
US-2025215335-A1 · Jul 3, 2025 · US
Organopolysiloxane Depolymerization
US-2025206885-A1 · Jun 26, 2025 · US
Decomposition of polyolefins
US-2025092216-A1 · Mar 20, 2025 · US
Network polymer and manufacturing method thereof
US-2025075052-A1 · Mar 6, 2025 · US
Processes for recovering dialkyl terephthalates from feedstocks
US-2025002677-A1 · Jan 2, 2025 · US
Processes for recovering dialkyl terephthalates from polyester compositions
US-2025002676-A1 · Jan 2, 2025 · US
Styrene-assisted depolymerization of polyolefins
US-12173124-B2 · Dec 24, 2024 · US
Processes for recovering dialkyl terephthalates from polyester compositions
US-2024409488-A1 · Dec 12, 2024 · US
Cascade degradation and upcycling of polystyrene waste to high value chemicals
US-2024392097-A1 · Nov 28, 2024 · US
Dihydroxy compound manufacturing method and recycled resin manufacturing method
US-2024376286-A1 · Nov 14, 2024 · US
Chemical and biological integrated degradation process for polyethylene terephthalate (pet), for recycling pet
US-2024229084-A9 · Jul 11, 2024 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08J11/20?
- CPC C08J11/20 is the Cooperative Patent Classification code for “by treatment with hydrocarbons or halogenated hydrocarbons.”
- How many patents are filed under CPC C08J11/20 (by treatment with hydrocarbons or halogenated hydrocarbons)?
- Our database includes 60 publications tagged with this CPC code.
- Is patent activity under CPC C08J11/20 growing?
- Publication counts under this code: 11 in 2024 vs 11 in 2025 (latest complete years).