C07C 67/60
By treatment giving rise to chemical modification
Official title: by treatment giving rise to chemical modification (by chemisorption C07C67/56)
C07C67/60 (By treatment giving rise to chemical modification) appears on 144 US grants and 105 published applications in this corpus.
Search patents in C07C- Granted patents
- 144
- Published applications
- 105
- Assignees
- 118
- Inventors
- 474
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 8 | 2 |
| 2003 | 5 | 3 |
| 2004 | 2 | 3 |
| 2005 | 2 | 4 |
| 2006 | 1 | 4 |
| 2007 | 2 | 3 |
| 2008 | 3 | 0 |
| 2009 | 0 | 5 |
| 2010 | 4 | 5 |
| 2011 | 3 | 8 |
| 2012 | 4 | 5 |
| 2013 | 3 | 6 |
| 2014 | 8 | 9 |
| 2015 | 5 | 2 |
| 2016 | 6 | 7 |
| 2017 | 7 | 2 |
| 2018 | 1 | 5 |
| 2019 | 3 | 1 |
| 2020 | 0 | 5 |
| 2021 | 5 | 3 |
| 2022 | 1 | 4 |
| 2023 | 3 | 6 |
| 2024 | 2 | 5 |
| 2025 | 3 | 4 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for purifying bis(2-hydroxyethyl)terephthalate11 Nov 2025US 12,466,780 B2Chempet Srl
- Process for treating polyester methanolysis depolymerization product streams7 Oct 2025US 12,435,024 B2Eastman Chemical Company
- Method for preparing a recycled material using waste copolyester and recycled material composition2 Sep 2025US 12,404,230 B2SK Chemicals Co., Ltd.
- Neutralization/water separation device for esterified product and neutralization/water separation method for esterified product7 May 2024US 11,975,991 B2LG Chem.Ltd.
- Decolorization and purification method of BHET material2 Jan 2024US 11,858,891 B2Nan Ya Plastics Corporation
- Reactive Separation Systems for Recovery or Valorization of Carboxylic Acids from Dilute Streams1 Oct 2026US 2026/0297014 A1Dioxycle
- Process for producing high-grade fatty acide polyol esters, particularly fatty acid glycerol esters27 Aug 2026US 2026/0250601 A1IOI OIeo GmbH
- Method for depolymerizing polyethylene terephthalate9 Jul 2026US 2026/0193444 A1King Fahd University of Petroleum and Minerals
- Acid gas and carbonyl removal in a stream of a chemical processing plant20 Nov 2025US 2025/0354071 A1Ecolab USA Inc.
- Ethyl acetate production and purification5 Jun 2025US 2025/0179003 A1Viridis Chemical, LLC
Most cited
By later US patents
- Method of purifying eicosapentaenoic acid and its esters173US 4,377,526 ANippon Suisan Kaisha, Ltd. · 1983
- Process for purification of alkyl alkanoate138US 6,632,330 B1Davy Process Technology Limited · 2003
- Process for the preparation of ethyl acetate134US 6,809,217 B1Davy Process Technology Limited · 2004
- Refining oil compositions56US 5,945,318 ANorsk Hydro A/S · 1999
- Process for preparing esters45US 4,216,337 AMitsubishi Gas Chemical Company, Inc. · 1980