Catalyst for depolymerizing polycarbonate-based resin, and decomposition method of polycarbonate-based resin, recovery method of catalyst for depolymerizing polycarbonate-based resin using the same
US-2026034539-A1 · Feb 5, 2026 · US
being esterified hydroxy groups
being esterified hydroxy groups · 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 | C07C37/0555 |
| Official title | {being esterified hydroxy groups} |
| Display label | being esterified hydroxy groups |
| Total patents | 39 |
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 | 2 |
| 2018 | 4 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 4 |
| 2023 | 9 |
| 2024 | 6 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for degrading polycarbonate
US-2026035535-A1 · Feb 5, 2026 · US
Production of aromatic acids and phenolics
US-12528758-B2 · Jan 20, 2026 · US
Method for degrading polycarbonate
US-2025353989-A1 · Nov 20, 2025 · US
Monomer composition for synthesizing recycled plastic, preparation method thereof, and recycled plastic, molded product using the same
US-2025340711-A1 · Nov 6, 2025 · US
Preparation method of monomer composition for synthesising recycled plastic, and monomer composition for synthesising recycled plastic, recycled plastic using the same, molded product using the same
US-2025333574-A1 · Oct 30, 2025 · US
Method for manufacturing bisphenol a
US-2025236718-A1 · Jul 24, 2025 · US
Monomer composition for synthesizing recycled plastic, preparation method thereof, recycled plastic, and molded product using the same
US-2025129003-A1 · Apr 24, 2025 · US
Composition containing bisphenol, production method for same, production method for bisphenol a, and production method for polycarbonate resin
US-2025043073-A1 · Feb 6, 2025 · US
Monomer composition for synthesizing recycled plastic, preparation method thereof, and recycled plastic, molded product using the same
US-2024400787-A1 · Dec 5, 2024 · US
Processes for making modulators of cystic fibrosis transmembrane conductance regulator
US-12024491-B2 · Jul 2, 2024 · US
Processes for making modulators of cystic fibrosis transmembrane conductance regulator
US-2024166607-A1 · May 23, 2024 · US
Methods of plastic recycling using highly efficient organocatalysts
US-2024067594-A1 · Feb 29, 2024 · US
Production of aromatic acids and phenolics
US-2024067593-A1 · Feb 29, 2024 · US
Monomer composition for synthesizing recycled plastic, preparation method thereof, and recycled plastic, molded product using the same
US-2024002627-A1 · Jan 4, 2024 · US
Monomer composition for synthesizing recycled plastic, preparation method thereof, recycled plastic, and molded product using the same
US-2023391702-A1 · Dec 7, 2023 · US
Monomer composition for synthesizing recycled plastic, preparation method thereof, recycled plastic, and molded product using the same
US-2023382837-A1 · Nov 30, 2023 · US
Monomer composition for synthesizing recycled plastic, preparation method thereof, recycled plastic, and molded product using the same
US-2023383089-A1 · Nov 30, 2023 · US
Monomer composition for synthesizing recycled plastic, preparation method thereof, recycled plastic, and molded product using the same
US-2023383090-A1 · Nov 30, 2023 · US
Monomer composition for synthesizing recycled plastic, preparation method thereof, recycled plastic, and molded product using the same
US-2023374251-A1 · Nov 23, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C37/0555?
- CPC C07C37/0555 is the Cooperative Patent Classification code for “being esterified hydroxy groups.”
- How many patents are filed under CPC C07C37/0555 (being esterified hydroxy groups)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC C07C37/0555 growing?
- Publication counts under this code: 6 in 2024 vs 6 in 2025 (latest complete years).