Process for reducing by-products in bisphenol A reaction system
US-12344575-B1 · Jul 1, 2025 · US
by treatment giving rise to a chemical modification (chemisorption C07C37/82) · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C37/86 |
| Official title | by treatment giving rise to a chemical modification (chemisorption C07C37/82) |
| Display label | by treatment giving rise to a chemical modification (chemisorption C07C37/82) |
| Total patents | 46 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 8 |
| 2024 | 3 |
| 2025 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12344575-B1 · Jul 1, 2025 · US
US-2025129003-A1 · Apr 24, 2025 · US
US-12084408-B2 · Sep 10, 2024 · US
US-11993564-B2 · May 28, 2024 · US
US-2024002627-A1 · Jan 4, 2024 · US
US-2023391702-A1 · Dec 7, 2023 · US
US-2023382837-A1 · Nov 30, 2023 · US
US-2023383089-A1 · Nov 30, 2023 · US
US-2023383090-A1 · Nov 30, 2023 · US
US-2023374251-A1 · Nov 23, 2023 · US
US-2023271901-A1 · Aug 31, 2023 · US
US-2023018666-A1 · Jan 19, 2023 · US
US-11548845-B2 · Jan 10, 2023 · US
US-2022304944-A1 · Sep 29, 2022 · US
US-2022281791-A1 · Sep 8, 2022 · US
US-2022259125-A1 · Aug 18, 2022 · US
US-11370735-B2 · Jun 28, 2022 · US
US-2021403401-A1 · Dec 30, 2021 · US
US-11142492-B2 · Oct 12, 2021 · US
US-11117852-B2 · Sep 14, 2021 · US
Answers are generated from the same data shown on this page.