C07C 37/80
By extractive distillation
Official title: by extractive distillation
C07C37/80 (By extractive distillation) appears on 50 US grants and 37 published applications in this corpus.
Search patents in C07C- Granted patents
- 50
- Published applications
- 37
- Assignees
- 21
- Inventors
- 82
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 4 |
| 2016 | 2 | 2 |
| 2017 | 0 | 1 |
| 2018 | 2 | 2 |
| 2019 | 2 | 3 |
| 2020 | 5 | 3 |
| 2021 | 3 | 3 |
| 2022 | 2 | 3 |
| 2023 | 1 | 7 |
| 2024 | 0 | 3 |
| 2025 | 2 | 2 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process configuration for a single phenol purification train for production of phenol and bisphenol-A in an integrated process25 Aug 2026US 12,715,830 B2Sabic Global Technologies B.V.
- Monomer composition for synthesizing recycled plastic, preparation method thereof, recycled plastic, and molded product using the same28 Jul 2026US 12,692,358 B2LG Chem.Ltd.
- Monomer composition for synthesizing recycled plastic, preparation method thereof, recycled plastic, and molded product using the same16 Jun 2026US 12,655,266 B2LG Chem.Ltd.
- Monomer composition for synthesizing recycled plastic, preparation method thereof, recycled plastic, and molded product using the same16 Jun 2026US 12,655,267 B2LG Chem.Ltd.
- Methods of modifying a naturally occurring cannabis raw plant material, a purified cannabis product from a naturally occurring cannabis raw plant material, and a modified cannabis product from a naturally occurring cannabis raw plant material4 Nov 2025US 12,458,906 B2High Sierra Technologies, Inc.
- Monomer composition for synthesising recycled plastic, preparation method thereof, recycled plastic, and molded product using the same10 Sep 2026US 2026/0265483 A1LG Chem.Ltd.
- Apparatuses, methods, and systems for extraction, isolation and conversion of various cannabinoids, and modifications of whole-plant hemp extracts therewith2 Oct 2025US 2025/0302796 A1Charlotte's Web, Inc.
- Full spectrum hemp oil compositions3 Apr 2025US 2025/0109087 A1Chemtor, LP
- Apparatuses, methods, and systems for extraction, isolation and conversion of various cannabinoids, and modifications of whole-plant hemp extracts therewith25 Jul 2024US 2024/0245642 A1Charlotte's Web, Inc.
- Process configuration for a single phenol purification train for production of phenol and bisphenol-a in an integrated process25 Jan 2024US 2024/0025830 A1Sabic Global Technologies B.V.
Most cited
By later US patents
- Process for production of phenol and cyclohexanone58US 4,021,490 APhillips Petroleum Company · 1977
- Process for producing phenolic compounds17US 4,351,967 AMitsui Petrochemical Industries, Ltd. · 1982
- Apparatuses, methods, and systems for extraction, isolation and conversion of various cannabinoids, and modifications of whole-plant hemp extracts therewith12US 10,624,872 B1Charlotte's Web, Inc. · 2020
- Separation of phenol-cyclohexanone azeotrope by extractive distillation with adipic acid diester12US 4,016,049 APhillips Petroleum Company · 1977
- Separation of phenol, cyclohexanone, and cyclohexylbenzene containing mixtures employing dialkyl and dicycloalkyl phthalates11US 4,019,965 APhillips Petroleum Company · 1977