C12N 9/0024
D-amino acid oxidase
Official title: {D-Amino acid oxidase (1.4.3.3)}
C12N9/0024 (D-amino acid oxidase) appears on 37 US grants and 29 published applications in this corpus.
Search patents in C12N- Granted patents
- 37
- Published applications
- 29
- Assignees
- 39
- Inventors
- 146
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 3 |
| 2010 | 0 | 3 |
| 2011 | 2 | 3 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 4 |
| 2023 | 2 | 3 |
| 2024 | 2 | 1 |
| 2025 | 3 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for preparing L-glufosinate ammonium by biological enzymatic de-racemization, glufosinate ammonium dehydrogenase mutant and use thereof13 Jan 2026US 12,522,852 B2Zhejiang University of Technology
- Method for preparing (s)-1,2,3,4-tetrahydroisoquinoline-1 carboxylic acid and derivatives thereof25 Nov 2025US 12,480,148 B2Tongli Biomedical Co., Ltd.
- Methods for producing crystalline L-glufosinate ammonium monohydrate25 Feb 2025US 12,234,254 B2BASF SE
- Method for asymmetrically preparing L-phosphinothricin by oxidation-reduction reaction through biological multi-enzyme coupling4 Feb 2025US 12,215,372 B2Zhejiang University of Technology
- Modified DAAO enzyme and application thereof31 Dec 2024US 12,180,514 B2Hunan Lier Biotech Co., Ltd
- Method for expressing d-amino acid oxidase and use thereof20 Aug 2026US 2026/0242750 A1Zhejiang Wynca Chemical Industry Group Co., Ltd
- D-amino acid oxidase mutant and application thereof in preparation of l-phosphinothricin22 May 2025US 2025/0163390 A1Zhejiang University of Technology
- D-amino acid oxidase and use thereof in preparation of l-phosphinothricin or intermediate thereof8 May 2025US 2025/0145971 A1Shanghai Qizhou Ziyue Biotechnology Co., Ltd.
- D-amino acid oxidase mutants and uses thereof in preparing l-glufosinate28 Mar 2024US 2024/0101974 A1East China University of Science and Technology
- Modified daao enzyme and application thereof28 Dec 2023US 2023/0416696 A1Hunan Lier Biotech Co., Ltd
Most cited
By later US patents
- Method for selectively producing male or female sterile plants18US 7,939,709 B2Syngenta Limited · 2011
- Methods and compositions for controlling insects17US 6,372,211 B1Monsanto Technolgy LLC · 2002
- Method for the preparation of L-amino acids from D-amino acids15US 7,217,544 B2Degussa AG · 2007
- Enzymatic process for preparing 7-aminocephalosporanic acid and derivatives13US 5,424,196 AAntibioticos S.p.A. · 1995
- Rhodosporidium D-amino acid oxidase13US 5,877,013 AFood Industry Research and Development Institute · 1999