C12Y 503/01
Interconverting aldoses and ketoses
Official title: interconverting aldoses and ketoses (5.3.1)
C12Y503/01 (Interconverting aldoses and ketoses) appears on 210 US grants and 331 published applications in this corpus.
Search patents in C12Y- Granted patents
- 210
- Published applications
- 331
- Assignees
- 176
- Inventors
- 744
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 4 |
| 2004 | 1 | 3 |
| 2005 | 1 | 0 |
| 2006 | 2 | 6 |
| 2007 | 1 | 2 |
| 2008 | 0 | 2 |
| 2009 | 3 | 5 |
| 2010 | 0 | 7 |
| 2011 | 3 | 7 |
| 2012 | 0 | 6 |
| 2013 | 8 | 15 |
| 2014 | 9 | 18 |
| 2015 | 15 | 21 |
| 2016 | 13 | 26 |
| 2017 | 15 | 17 |
| 2018 | 20 | 24 |
| 2019 | 15 | 22 |
| 2020 | 23 | 29 |
| 2021 | 12 | 25 |
| 2022 | 16 | 20 |
| 2023 | 16 | 17 |
| 2024 | 8 | 24 |
| 2025 | 8 | 13 |
| 2026 | 11 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C12Y 503/01005Xylose isomerase112
- C12Y 503/01009Glucose-6-phosphate isomerase45
- C12Y 503/01006Ribose-5-phosphate isomerase19
- C12Y 503/01004L-arabinose isomerase11
- C12Y 503/010276-phospho-3-hexuloisomerase10
- C12Y 503/01008Mannose-6-phosphate isomerase8
- C12Y 503/01003Arabinose isomerase7
- C12Y 503/01001Triose-phosphate isomerase6
All 24 subgroupsShow fewer
- C12Y 503/01014L-rhamnose isomerase4
- C12Y 503/01007Mannose isomerase3
- C12Y 503/01018Glucose isomerase3
- C12Y 503/01013Arabinose-5-phosphate isomerase1
- C12Y 503/010161--5- imidazole-4-carboxamid1
- C12Y 503/01024Phosphoribosylanthranilate isomerase1
- C12Y 503/01026Galactose-6-phosphate isomerase1
- C12Y 503/01012Glucuronate isomerase0
- C12Y 503/01015D-lyxose ketol-isomerase0
- C12Y 503/010175-dehydro-4-deoxy-d-glucuronate isomerase0
- C12Y 503/0102Ribose isomerase0
- C12Y 503/01021Corticosteroid side-chain-isomerase0
- C12Y 503/01022Hydroxypyruvate isomerase0
- C12Y 503/01023S-methyl-5-thioribose-1-phosphate isomerase , i.e. 5-methylthioribose-1-phosphate isomerase0
- C12Y 503/01025L-fucose isomerase0
- C12Y 503/01028D-sedoheptulose 7-phosphate isomerase0
Recent patents
- Production of fructose from oligo-/ and/or polysaccharides22 Sep 2026US 12,742,190 B2Archer Daniels Midland Company
- 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.
- Production of milk oligosaccharides in plants18 Aug 2026US 12,709,757 B2The Regents of the University of California
- Methods and compositions for the production of xylitol from xylose utilizing dynamic metabolic control23 Jun 2026US 12,662,687 B2Duke University
- Biocatalytic isomerization of a carbohydrate8 Oct 2026US 2026/0308650 A1Cascat GmbH
- Enzymatic conversion of d-xylose into d-ribose and d-ribulose-5-phosphate17 Sep 2026US 2026/0275395 A1Kookmin University Industry Academy Cooperation Foundation
- Method of synthesis of testosteronan polymer and derivatives and uses thereof10 Sep 2026US 2026/0265803 A1Weka Biosciences, LLC
- Method for the production of d-tagatose using an l-arabinose isomerase from lentilactobacillus parakefiri3 Sep 2026US 2026/0258463 A1
- Glycoside product biosynthesis and recovery20 Aug 2026US 2026/0242839 A1Manus Bio 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
- Method for making cereal products naturally sweetened with fructose32US 4,857,339 ANabisco/Cetus Food Biotechnology Research Partnership · 1989