A23K 20/142
Amino acids
Official title: Amino acids; Derivatives thereof
A23K20/142 (Amino acids) appears on 1,406 US grants and 2,626 published applications in this corpus.
Search patents in A23K- Granted patents
- 1,406
- Published applications
- 2,626
- Assignees
- 1,133
- Inventors
- 4,972
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 9 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 10 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 10 | 0 |
| 1990 | 8 | 0 |
| 1991 | 14 | 0 |
| 1992 | 13 | 0 |
| 1993 | 9 | 0 |
| 1994 | 10 | 0 |
| 1995 | 5 | 0 |
| 1996 | 15 | 0 |
| 1997 | 11 | 0 |
| 1998 | 30 | 0 |
| 1999 | 24 | 0 |
| 2000 | 24 | 0 |
| 2001 | 31 | 11 |
| 2002 | 39 | 40 |
| 2003 | 22 | 69 |
| 2004 | 30 | 76 |
| 2005 | 21 | 81 |
| 2006 | 18 | 62 |
| 2007 | 16 | 61 |
| 2008 | 21 | 71 |
| 2009 | 30 | 96 |
| 2010 | 28 | 95 |
| 2011 | 30 | 69 |
| 2012 | 40 | 73 |
| 2013 | 41 | 87 |
| 2014 | 61 | 118 |
| 2015 | 38 | 118 |
| 2016 | 45 | 127 |
| 2017 | 59 | 113 |
| 2018 | 57 | 120 |
| 2019 | 52 | 124 |
| 2020 | 69 | 158 |
| 2021 | 73 | 151 |
| 2022 | 62 | 171 |
| 2023 | 69 | 171 |
| 2024 | 76 | 140 |
| 2025 | 76 | 132 |
| 2026 | 48 | 92 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Use of ionic polymers in biomass processing for preparation of animal feed additive6 Oct 2026US 12,751,470 B2Embion Technologies SA
- Pet food compositions6 Oct 2026US 12,751,471 B2Hill's Pet Nutrition, Inc.
- Method for improving inflammation, joint health, joint mobility, and joint comfort in healthy mammals15 Sep 2026US 12,733,666 B2Lonza Consumer Health Inc.
- Process for the diastereomerically pure preparation of DL/LD-methionylmethionine25 Aug 2026US 12,715,848 B2Evonik Operations GmbH
- Identifying defects in canine nucleotide salvage pathways and compositions and methods for improving immune function in dogs25 Aug 2026US 12,716,099 B2Hill's Pet Nutrition, Inc.
- Wet food compositions suitable for intestinal disorder1 Oct 2026US 2026/0293936 A1Mars, Incorporated
- Shrimp feed and methods of use thereof1 Oct 2026US 2026/0293937 A1Organicin Scientific, Inc.
- Pet Food Compositions1 Oct 2026US 2026/0294860 A1Hill's Pet Nutrition, Inc.
- Animal diet comprising phytase, thereby obviating the need for mineral supplementation1 Oct 2026US 2026/0295020 A1International N&H Denmark Aps
- Pasture treatments for enhanced carbon sequestration and reduction in livestock-produced greenhouse gas emissions24 Sep 2026US 2026/0283195 A1Locus Solutions Ipco, LLC
Most cited
By later US patents
- DHA-containing nutritional compositions and methods for their production165US 6,372,460 B1Martek Biosciences Corporation · 2002
- Method for selecting ruminant feed composition using abomasal infusion148US 5,503,112 ALand O' Lakes, Inc. · 1996
- Lipid-containing feed supplements and foodstuffs112US 4,217,370 ABlue Wing Corporation · 1980
- Transdermal estrogen/progestin dosage unit, system and process107US 5,023,084 ARutgers, The State University of New Jersey · 1991
- Edible thermoplastic and nutritious pet chew92US 6,455,083 B1Natural Polymer International Corporation · 2002