C12P 41/002
Processes using enzymes or microorganisms to separate optical isomers from a racemic
Official title: {by oxidation/reduction reactions}
C12P41/002 (Processes using enzymes or microorganisms to separate optical isomers from a racemic) appears on 179 US grants and 175 published applications in this corpus.
Search patents in C12P- Granted patents
- 179
- Published applications
- 175
- Assignees
- 101
- Inventors
- 548
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 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 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 3 |
| 2002 | 13 | 7 |
| 2003 | 4 | 4 |
| 2004 | 4 | 6 |
| 2005 | 0 | 0 |
| 2006 | 2 | 5 |
| 2007 | 3 | 7 |
| 2008 | 2 | 8 |
| 2009 | 1 | 6 |
| 2010 | 6 | 9 |
| 2011 | 3 | 6 |
| 2012 | 7 | 8 |
| 2013 | 9 | 11 |
| 2014 | 2 | 5 |
| 2015 | 7 | 11 |
| 2016 | 12 | 7 |
| 2017 | 8 | 6 |
| 2018 | 7 | 11 |
| 2019 | 5 | 8 |
| 2020 | 8 | 8 |
| 2021 | 6 | 9 |
| 2022 | 6 | 11 |
| 2023 | 5 | 6 |
| 2024 | 5 | 8 |
| 2025 | 11 | 3 |
| 2026 | 1 | 2 |
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
- Stabilization of tryptamines by denaturing enzymes, optimizing ionization states, and controlling confounding variables16 Dec 2025US 12,497,637 B1Convergent Health Sciences LLC
- Methods of producing epimerases and benzylisoquinoline alkaloids16 Dec 2025US 12,497,638 B2The Board of Trustees of the Leland Stanford Junior University
- Method for preparing (s)-1,2,3,4-tetrahydroisoquinoline-1 carboxylic acid and derivatives thereof25 Nov 2025US 12,480,148 B2Tongli Biomedical Co., Ltd.
- Ketoreductase polypeptides for the synthesis of chiral compounds9 Sep 2025US 12,410,410 B2Codexis, Inc.
- Process for the reduction of aromatic imines with novel imine reductases (ireds)21 May 2026US 2026/0139283 A1
- High Yielding Enantioselective Enzymatic Process for Preparing Ursodeoxycholic Acid15 Jan 2026US 2026/0015644 A1Symbio Generrics India Private Limited
- Method for preparing alpha-branched beta'-hydroxy carbonyl compounds by enzymatic-catalyzed reductive aldol reaction7 Aug 2025US 2025/0250593 A1Max-Planck-Gesellschaft Zur FöRderung Der Wissenschaften E. V.
- Production method for l-cyclic amino acids31 Jul 2025US 2025/0243520 A1Ube Corporation
- Ketoreductase polypeptides and polynucleotides26 Jun 2025US 2025/0207171 A1Codexis, Inc.
Most cited
By later US patents
- Method for the enantioselective reduction of 3,5-dioxocarboxylic acids, their salts and their esters186US 6,399,339 B1Forschungszentrum Julich GmbH · 2002
- Carbonyl reductase, gene thereof and method of using the same134US 6,645,746 B1Kaneka Corporation · 2003
- Lactobacillus kefir alcohol dehydrogenase81US 5,342,767 AThe Scripps Research Institute · 1994
- Lactobacillus kefir alcohol dehydrogenase79US 5,225,339 AThe Scripps Research Institute · 1993
- Process for the preparation of treprostinil and derivatives thereof39US 9,346,738 B2SciPharm SaRL · 2016