Processes for purification, recovery, and conversion of chlorophenol salts and preparation and recovery of products prepared therefrom
US-12240807-B2 · Mar 4, 2025 · US
by extractive distillation
by extractive distillation · 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 | C07C37/80 |
| Official title | by extractive distillation |
| Display label | by extractive distillation |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 3 |
| 2021 | 3 |
| 2023 | 7 |
| 2024 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process configuration for a single phenol purification train for production of phenol and bisphenol-a in an integrated process
US-2024025830-A1 · Jan 25, 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
Processes for purification, recovery, and conversion of chlorophenol salts and preparation and recovery of products prepared therefrom
US-2023202961-A1 · Jun 29, 2023 · US
Processes for purification, recovery, and conversion of chlorophenol salts and preparation and recovery of products prepared therefrom
US-11629114-B2 · Apr 18, 2023 · US
Processes for purification, recovery, and conversion of chlorophenol salts and preparation and recovery of products prepared therefrom
US-2021163395-A1 · Jun 3, 2021 · US
Dealklylation and transalkylation of mixed phenols to make cresols
US-2021139399-A1 · May 13, 2021 · US
Processes for purification, recovery, and conversion of chlorophenol salts and preparation and recovery of products prepared therefrom
US-10913701-B2 · Feb 9, 2021 · US
Processes for purification, recovery, and conversion of chlorophenol salts and preparation and recovery of products prepared therefrom
US-2019322612-A1 · Oct 24, 2019 · US
Process for making cyclohexanone and/or phenol
US-10294178-B2 · May 21, 2019 · US
Method of recovering phenol from a BPA production facility and the facility for recovering the same
US-10246391-B2 · Apr 2, 2019 · US
Method of recovering phenol from a bpa production facility and the facility for recovering the same
US-2018258020-A1 · Sep 13, 2018 · US
Treatment of alcohol compositions
US-10005707-B2 · Jun 26, 2018 · US
Process for Making Cyclohexanone and/or Phenol
US-2018065903-A1 · Mar 8, 2018 · US
Process for making phenol and/or cyclohexanone
US-9908829-B2 · Mar 6, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C37/80?
- CPC C07C37/80 is the Cooperative Patent Classification code for “by extractive distillation.”
- How many patents are filed under CPC C07C37/80 (by extractive distillation)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC C07C37/80 growing?
- Publication counts under this code: 2 in 2024 vs 1 in 2025 (latest complete years).