A23F 3/38
Reducing or removing alkaloid content from tea extract
A23F3/38 (Reducing or removing alkaloid content from tea extract) appears on 41 US grants and 33 published applications in this corpus.
Search patents in A23F- Granted patents
- 41
- Published applications
- 33
- Assignees
- 29
- Inventors
- 108
- Latest grant
- 20 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 1 | 4 |
| 2013 | 2 | 0 |
| 2014 | 0 | 2 |
| 2015 | 2 | 3 |
| 2016 | 0 | 2 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 3 |
| 2020 | 4 | 3 |
| 2021 | 3 | 1 |
| 2022 | 2 | 2 |
| 2023 | 3 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Beverage composition20 Feb 2024US 11,903,394 B2Kao Corporation
- Production method for composition which contains non-polymer catechin14 Nov 2023US 11,812,759 B2Kao Corporation
- Edible product comprising reconstituted plant material6 Jun 2023US 11,666,530 B2Schweitzer-Mauduit International, Inc.
- Pretreated clay composition and process for selective removal of planar molecules from solutions16 May 2023US 11,647,768 B2International Business Machines Corporation
- Composition for making a tea beverage or herbal and vegetable broths1 Nov 2022US 11,484,497 B2Schweitzer-Mauduit International, Inc.
- Composition For Making a Tea Beverage or Herbal and Vegetable Broths9 Feb 2023US 2023/0043427 A1Schweitzer-Mauduit International, Inc.
- Beverage composition29 Dec 2022US 2022/0408752 A1Kao Corporation
- Pretreated clay composition for selective removal of planar molecules from solutions12 May 2022US 2022/0142213 A1International Business Machines Corporation
- Production method for composition which contains non-polymer catechin15 Apr 2021US 2021/0106021 A1Kao Corporation
- Edible Product Comprising Reconstituted Plant Material17 Dec 2020US 2020/0390696 A1Schweitzer-Mauduit International, Inc.
Most cited
By later US patents
- Removal of caffeine by selective adsorption using zeolite adsorbents26US 4,331,694 AUnion Carbide Corporation · 1982
- Process for treating an aqueous extract of a vegetable material24US 4,160,042 A1979
- Decaffeination of vegetable material17US 4,031,251 ASociete d'Assistance Technique pour Produits Nestle S. A. · 1977
- Membrane decaffeination14US 4,113,886 AGeneral Foods Corporation · 1978
- Adsorption decaffeination14US 4,324,840 AGeneral Foods Corporation · 1982