A23F 5/226
By extraction with selective solvents
Official title: {by extraction with selective solvents}
A23F5/226 (By extraction with selective solvents) appears on 26 US grants and 2 published applications in this corpus.
Search patents in A23F- Granted patents
- 26
- Published applications
- 2
- Assignees
- 11
- Inventors
- 49
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 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 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of extraction of natural caffeine from a caffeine containing biological material30 Dec 2025US 12,507,708 B2Givaudan SA
- Process for the quasi-continuous decaffeination of raw coffee16 Aug 1994US 5,338,575 AKohiensaure-werke Rud. Buse GmbH & Co.
- Apparatus for decaffeination of aqueous extracts28 Aug 1990US 4,951,557 AChock Full O'Nuts Corp.
- Decaffeination of aqueous extracts28 Mar 1989US 4,816,275 AChock Full O'Nuts Corp.
- Coffee decaffeination with caffeic acid30 Aug 1988US 4,767,634 AGeneral Foods Corporation
Most cited
By later US patents
- Coffee extraction process26US 4,352,829 AThe Procter & Gamble Company · 1982
- Decaffeination of aqueous extracts20US 4,246,291 AGeneral Foods Corporation · 1981
- Process for the quasi-continuous decaffeination of raw coffee19US 5,338,575 AKohiensaure-werke Rud. Buse GmbH & Co. · 1994
- Still extractor with novel stopcock means17US 4,006,062 ACouncil of Scientific and Industrial Research · 1977
- Roasted coffee extract decaffeination method16US 4,547,378 AGeneral Foods Corporation · 1985