C12N 9/6427
Chymotrypsins
Official title: {Chymotrypsins (3.4.21.1; 3.4.21.2); Trypsin (3.4.21.4)}
C12N9/6427 (Chymotrypsins) appears on 108 US grants and 148 published applications in this corpus.
Search patents in C12N- Granted patents
- 108
- Published applications
- 148
- Assignees
- 127
- Inventors
- 477
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 5 |
| 2003 | 1 | 5 |
| 2004 | 3 | 6 |
| 2005 | 0 | 5 |
| 2006 | 3 | 6 |
| 2007 | 6 | 7 |
| 2008 | 3 | 4 |
| 2009 | 2 | 4 |
| 2010 | 2 | 4 |
| 2011 | 2 | 0 |
| 2012 | 0 | 5 |
| 2013 | 1 | 2 |
| 2014 | 1 | 0 |
| 2015 | 3 | 3 |
| 2016 | 5 | 5 |
| 2017 | 1 | 8 |
| 2018 | 3 | 7 |
| 2019 | 4 | 12 |
| 2020 | 2 | 5 |
| 2021 | 8 | 8 |
| 2022 | 4 | 5 |
| 2023 | 5 | 10 |
| 2024 | 3 | 12 |
| 2025 | 3 | 10 |
| 2026 | 3 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for analyzing protein29 Sep 2026US 12,747,465 B2Hitachi, Ltd.
- Acellular dermal matrix for skin and surgical reconstruction and methods of making same28 Jul 2026US 12,691,202 B1Humabiologics, Inc.
- Materials and methods for isolating self-antigen polypeptides31 Mar 2026US 12,590,120 B2Impact Proteomics
- Enzyme based compositions and methods for removing dental calculi25 Nov 2025US 12,478,571 B2Pontis Biologics, Inc.
- Preparation and application of high-activity and high-safety cardamine violifolia selenoprotein standard sample12 Aug 2025US 12,385,076 B2Enshi SE-Run Material Engineering Technology Co., Ltd.
- Antimicrobial defensin peptide folding variants1 Oct 2026US 2026/0297145 A1Donald Danforth Plant Science Center
- Antimicrobial nodule-specific cysteine-rich peptide folding variants1 Oct 2026US 2026/0297146 A1Donald Danforth Plant Science Center
- Dual inhibitor trypsin antibodies and uses thereof17 Sep 2026US 2026/0274991 A1Triveni Bio, Inc.
- Method of obtaining recombinant human brain-derived neurotrophic factor6 Aug 2026US 2026/0226122 A1Dompé Farmaceutici S.P.A.
- 3d-printed skin model using personalized decellularized ecm28 May 2026US 2026/0146234 A1Ewha University-Industry Collaboration Foundation
Most cited
By later US patents
- Preservation of biological materials using fiber-forming techniques66US 6,821,479 B1The University of Akron · 2004
- Method for removing components of biological fluids45US 4,861,705 AYeda Research and Development Co. Ltd. · 1989
- Chimeric serine proteases37US 6,660,492 B1Boehringer Mannheim GmbH · 2003
- Serine protease mutants of the chymotrypsin superfamily resistant to inhibition by their cognate inhibitors33US 5,304,482 ABoard of Regents, The University of Texas System · 1994
- Antimicrobial peptides31US 5,447,914 AEmory University · 1995