A23F 5/20
Reducing or removing alkaloid content
Official title: Reducing or removing alkaloid content; Preparations produced thereby; Extracts or infusions thereof
A23F5/20 (Reducing or removing alkaloid content) appears on 146 US grants and 71 published applications in this corpus.
Search patents in A23F- Granted patents
- 146
- Published applications
- 71
- Assignees
- 74
- Inventors
- 306
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 11 | 0 |
| 1982 | 9 | 0 |
| 1983 | 2 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 4 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 0 | 2 |
| 2014 | 1 | 5 |
| 2015 | 4 | 4 |
| 2016 | 1 | 2 |
| 2017 | 1 | 3 |
| 2018 | 2 | 6 |
| 2019 | 2 | 5 |
| 2020 | 2 | 5 |
| 2021 | 2 | 4 |
| 2022 | 4 | 3 |
| 2023 | 4 | 8 |
| 2024 | 4 | 4 |
| 2025 | 3 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A23F 5/22Reducing or removing alkaloid content from coffee extract83
- A23F 5/206By extraction of the beans with selective solvents other than water or43
- A23F 5/208By extraction of the beans with water, aqueous solutions without organic or24
- A23F 5/202By addition of alkaloid neutralising or complexing agents7
- A23F 5/204Using enzymes or microorganisms6
Recent patents
- Method for producing fermented green coffee beans by complex fermentation and fermented green coffee beans produced thereby20 Jan 2026US 12,527,332 B2BIOLIV Co., Ltd.
- Method of extraction of natural caffeine from a caffeine containing biological material30 Dec 2025US 12,507,708 B2Givaudan SA
- Coffee bean compositions comprising paraxanthine and methods for their production27 May 2025US 12,310,971 B2Rarebird, Inc.
- Cold-brew coffee extracts and methods of producing the same7 Jan 2025US 12,185,733 B2Mastercoldbrewer AG
- Compositions and methods for their production31 Dec 2024US 12,178,820 B2Rarebird, Inc.
- Extraction method26 Mar 2026US 2026/0083150 A1Givaudan SA
- Compositions and methods for their production11 Sep 2025US 2025/0281494 A1Rarebird, Inc.
- Compositions and methods for their production3 Apr 2025US 2025/0108057 A1Rarebird, Inc.
- Process for decreasing turbidity and acidity in a coffee beverage26 Sep 2024US 2024/0315271 A1Basic Beverages LLC
- Compositions and methods for their production13 Jun 2024US 2024/0189314 A1Rarebird, Inc.
Most cited
By later US patents
- Coffee and process for the production thereof65US 5,888,549 ACode Kaffee-Handelsges. mbH · 1999
- Filter with zeolitic adsorbent attached to individual exposed surfaces of an electret-treated fibrous matrix28US 5,906,743 AKimberly-Clark Worldwide, Inc. · 1999
- Method for decaffeinating coffee27US 4,276,315 AGeneral Foods Corporation · 1981
- Removal of caffeine by selective adsorption using zeolite adsorbents26US 4,331,694 AUnion Carbide Corporation · 1982
- Coffee extraction process26US 4,352,829 AThe Procter & Gamble Company · 1982