C07C 37/74
By distillation
Official title: by distillation
C07C37/74 (By distillation) appears on 258 US grants and 193 published applications in this corpus.
Search patents in C07C- Granted patents
- 258
- Published applications
- 193
- Assignees
- 120
- Inventors
- 591
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 9 | 0 |
| 1980 | 3 | 0 |
| 1981 | 15 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 2 |
| 2003 | 5 | 4 |
| 2004 | 4 | 2 |
| 2005 | 3 | 7 |
| 2006 | 5 | 5 |
| 2007 | 2 | 1 |
| 2008 | 1 | 3 |
| 2009 | 4 | 7 |
| 2010 | 5 | 7 |
| 2011 | 4 | 3 |
| 2012 | 3 | 2 |
| 2013 | 5 | 2 |
| 2014 | 2 | 4 |
| 2015 | 6 | 11 |
| 2016 | 9 | 9 |
| 2017 | 7 | 15 |
| 2018 | 11 | 9 |
| 2019 | 10 | 13 |
| 2020 | 15 | 13 |
| 2021 | 13 | 14 |
| 2022 | 9 | 15 |
| 2023 | 6 | 21 |
| 2024 | 7 | 10 |
| 2025 | 7 | 11 |
| 2026 | 7 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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.
- Synergistic use of phenol purification train in phenol production unit for processing phenolic water from bisphenol-a production unit12 May 2026US 12,623,986 B2Sabic Global Technologies B.V.
- Method of purifying cannabinoid components from plant extracts10 Sep 2026US 2026/0265167 A1
- Monomer composition for synthesising recycled plastic, preparation method thereof, recycled plastic, and molded product using the same10 Sep 2026US 2026/0265483 A1LG Chem.Ltd.
- Synthesis and purification of cannabigerol and its application5 Mar 2026US 2026/0060906 A1Symrise AG
- Process For Production Of Essentially Pure Delta-9-Tetrahydrocannabinol4 Dec 2025US 2025/0367161 A1Cct Sciences, LLC
- Compositions and methods to separate cannabinoids from impurities by crystallization4 Dec 2025US 2025/0368594 A1Natural Extraction Systems, LLC
Most cited
By later US patents
- Distillation process for recovery of high purity phenol78US 5,064,507 AAllied-Signal Inc. · 1991
- Process for production of phenol and cyclohexanone58US 4,021,490 APhillips Petroleum Company · 1977
- Method for making bisphenoxide salts and bisimides derived therefrom36US 4,257,953 AGeneral Electric Company · 1981
- Process for manufacture of bisphenol31US 5,783,733 AGeneral Electric Company · 1998
- Apparatus and methods for the simultaneous production of compounds29US 9,394,510 B2Full Spectrum Laboratories Limited · 2016