C12N 9/92
Glucose isomerase
Official title: Glucose isomerase {(5.3.1.5; 5.3.1.9; 5.3.1.18)}
C12N9/92 (Glucose isomerase) appears on 252 US grants and 244 published applications in this corpus.
Search patents in C12N- Granted patents
- 252
- Published applications
- 244
- Assignees
- 170
- Inventors
- 690
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 7 | 0 |
| 1982 | 7 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 4 |
| 2003 | 3 | 4 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 8 |
| 2007 | 4 | 5 |
| 2008 | 2 | 6 |
| 2009 | 2 | 8 |
| 2010 | 4 | 12 |
| 2011 | 11 | 16 |
| 2012 | 4 | 8 |
| 2013 | 7 | 12 |
| 2014 | 15 | 20 |
| 2015 | 14 | 16 |
| 2016 | 12 | 20 |
| 2017 | 11 | 9 |
| 2018 | 15 | 10 |
| 2019 | 11 | 13 |
| 2020 | 12 | 16 |
| 2021 | 8 | 17 |
| 2022 | 11 | 9 |
| 2023 | 7 | 10 |
| 2024 | 6 | 7 |
| 2025 | 6 | 8 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Enzymatic production of allulose15 Sep 2026US 12,735,685 B2Bonumose, Inc.
- Method for producing tagatose by immobilized multi-enzyme system15 Sep 2026US 12,735,731 B2Tianjin Yeahe Biotechnology Co., Ltd.
- Enzymatic production of hexoses24 Mar 2026US 12,584,121 B2Bonumose, Inc.
- Method for making fructose from glucose24 Feb 2026US 12,559,778 B2Novasep Process Solutions
- Gene duplications for crabtree-warburg-like aerobic xylose fermentation17 Feb 2026US 12,553,066 B2Wisconsin Alumni Research Foundation
- Compositions and methods for the production of allulose18 Jun 2026US 2026/0167947 A1GreenLight Biosciences, Inc.
- Mixtures of glucose and xylose for the fermentative preparation of ortho-aminobenzoic acid30 Apr 2026US 2026/0117268 A1Covestro Deutschland AG
- Adaptation and process optimization of microorganisms for growth in hemicellulosic derived carbohydrates26 Mar 2026US 2026/0085280 A1Mara Renewables Corporation
- Compositions and methods for producing allulose2 Oct 2025US 2025/0304942 A1Danisco US Inc.
- Cell-free production of sugars31 Jul 2025US 2025/0243521 A1GreenLight Biosciences, Inc.
Most cited
By later US patents
- Transformed eukaryotic cells that directly convert xylose to xylulose63US 7,622,284 B2Royal Nedalco B.V. · 2009
- Xylose isomerase with improved properties62US 6,475,768 B1Forskarpatent I Syd AB · 2002
- Mannose or xylose based positive selection60US 5,767,378 ANovartis AG · 1998
- Controlled dissolution crosslinked protein crystals40US 6,140,475 AAltus Biologics Inc. · 2000
- Zymomonas pentose-sugar fermenting strains and uses thereof34US 7,223,575 B2Midwest Research Institute · 2007