C07K 1/28
Isoelectric focusing
C07K1/28 (Isoelectric focusing) appears on 44 US grants and 80 published applications in this corpus.
Search patents in C07K- Granted patents
- 44
- Published applications
- 80
- Assignees
- 49
- Inventors
- 180
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 4 |
| 2003 | 0 | 4 |
| 2004 | 4 | 9 |
| 2005 | 2 | 6 |
| 2006 | 1 | 2 |
| 2007 | 1 | 7 |
| 2008 | 0 | 5 |
| 2009 | 1 | 4 |
| 2010 | 4 | 3 |
| 2011 | 2 | 2 |
| 2012 | 2 | 4 |
| 2013 | 1 | 4 |
| 2014 | 2 | 2 |
| 2015 | 2 | 1 |
| 2016 | 2 | 1 |
| 2017 | 2 | 1 |
| 2018 | 2 | 2 |
| 2019 | 1 | 4 |
| 2020 | 2 | 4 |
| 2021 | 1 | 1 |
| 2022 | 1 | 2 |
| 2023 | 1 | 2 |
| 2024 | 1 | 4 |
| 2025 | 0 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods and compositions for electophoretic separations6 Oct 2026US 12,754,165 B2DH Techologies Development Pte. Ltd.
- Method for preparing and certifying novel coronavirus nucleocapsid protein15 Sep 2026US 12,735,460 B2National Institute of Metrology, China
- Apparatus, systems, and methods for capillary electrophoresis19 Mar 2024US 11,933,759 B2ProteinSimple
- Methods and apparatus for simultaneously detecting a large range of protein concentrations16 May 2023US 11,649,263 B2ProteinSimple
- Microfluidics-based nanobiosensors and devices3 May 2022US 11,318,470 B2Kansas State University Research Foundation
- Apparatus, systems, and methods for capillary electrophoresis4 Dec 2025US 2025/0369920 A1ProteinSimple
- Vegf-trap protein variants and analysis thereof17 Jul 2025US 2025/0231141 A1Regeneron Pharmaceuticals, Inc.
- Methods and compositions for electophoretic separations26 Dec 2024US 2024/0426779 A1DH Technologies Development Pte. Ltd.
- Allergy antigen and epitope thereof28 Nov 2024US 2024/0393292 A1Hoyu Co., Ltd.
- Apparatus, systems, and methods for capillary electrophoresis8 Aug 2024US 2024/0264115 A1ProteinSimple
Most cited
By later US patents
- Tandem isotachophoresis/zone electrophoresis method and system136US 6,685,813 B2Aclara Biosciences, Inc. · 2004
- Microfluidic device with sample injector and method of using130US 6,818,113 B2Aclara Biosciences, Inc. · 2004
- Tandem isotachophoresis/zone electrophoresis method and system128US 7,494,577 B2Monogram Biosciences, Inc. · 2009
- Method for electrophoretically separating membrane proteins22US 7,175,747 B22007
- Isoelectric point markers for isoelectric focusing with fluorescence detection17US 5,866,683 ALaboratory of Molecular Biophotonics · 1999