C07K 1/22
Affinity chromatography or related techniques based upon selective absorption processes
C07K1/22 (Affinity chromatography or related techniques based upon selective absorption processes) appears on 1,106 US grants and 1,791 published applications in this corpus.
Search patents in C07K- Granted patents
- 1,106
- Published applications
- 1,791
- Assignees
- 797
- Inventors
- 3,559
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 11 | 0 |
| 1998 | 15 | 0 |
| 1999 | 12 | 0 |
| 2000 | 12 | 0 |
| 2001 | 5 | 5 |
| 2002 | 9 | 11 |
| 2003 | 10 | 28 |
| 2004 | 8 | 20 |
| 2005 | 10 | 33 |
| 2006 | 16 | 27 |
| 2007 | 9 | 32 |
| 2008 | 15 | 35 |
| 2009 | 9 | 45 |
| 2010 | 26 | 57 |
| 2011 | 17 | 66 |
| 2012 | 30 | 49 |
| 2013 | 37 | 79 |
| 2014 | 38 | 82 |
| 2015 | 53 | 80 |
| 2016 | 62 | 116 |
| 2017 | 71 | 94 |
| 2018 | 49 | 91 |
| 2019 | 66 | 135 |
| 2020 | 76 | 100 |
| 2021 | 95 | 127 |
| 2022 | 66 | 131 |
| 2023 | 78 | 88 |
| 2024 | 60 | 98 |
| 2025 | 61 | 83 |
| 2026 | 32 | 79 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Integrated method for urinary prostate specific Antigen N-glycosylation profiling by capillary electrophoresis6 Oct 2026US 12,754,163 B2Pannon Egyetem
- Binding protein specific for the spike protein of severe acute respiratory syndrome corona virus 2 (SARS-CoV-2)6 Oct 2026US 12,754,184 B2Navigo Proteins GmbH
- Process for preparing immunoglobulin compositions29 Sep 2026US 12,747,282 B2Biotest GmbH & Co. KGaA
- Alpha-carbonyl alkenyl ester preparation method therefor and application thereof15 Sep 2026US 12,735,449 B2Jiangxi Normal University
- Purification process for lipid-membrane-enclosed complex assemblages8 Sep 2026US 12,729,220 B2Sartorius Bia Separations
- Anti-vegf protein compositions and methods for producing the same8 Oct 2026US 2026/0308231 A1Regeneron Pharmaceuticals, Inc.
- Anti-vegf protein compositions and methods for producing the same8 Oct 2026US 2026/0308232 A1Regeneron Pharmaceuticals, Inc.
- Anti-vegf protein compositions and methods for producing the same8 Oct 2026US 2026/0308233 A1Regeneron Pharmaceuticals, Inc.
- Separation Matrix and a Method of Separating Antibodies1 Oct 2026US 2026/0295462 A1Cytiva BioProcess R&D AB
- Split inteins for affinity capture1 Oct 2026US 2026/0297126 A1Cytiva BioProcess R&D AB
Most cited
By later US patents
- Readily isolated bispecific antibodies with native immunoglobulin format169US 8,586,713 B2Regeneron Pharmaceuticals, Inc. · 2013
- Antibody purification154US 5,429,746 ASmith Kline Beecham Corporation · 1995
- Protein purification149US 6,870,034 B2Genentech, Inc. · 2005
- Immobilized polyethylene oxide star molecules for bioapplications126US 5,171,264 AMassachusetts Institute of Technology · 1992
- Oil bodies and associated proteins as affinity matrices120US 5,856,452 ASemBioSys Genetics Inc. · 1999