G01N 33/558
Using diffusion or migration of antigen or antibody
Official title: using diffusion or migration of antigen or antibody {(immunochromatographic test strips G01N33/54387)}
G01N33/558 (Using diffusion or migration of antigen or antibody) appears on 310 US grants and 422 published applications in this corpus.
Search patents in G01N- Granted patents
- 310
- Published applications
- 422
- Assignees
- 286
- Inventors
- 961
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 14 |
| 2003 | 6 | 7 |
| 2004 | 7 | 16 |
| 2005 | 6 | 12 |
| 2006 | 4 | 4 |
| 2007 | 3 | 11 |
| 2008 | 3 | 6 |
| 2009 | 5 | 4 |
| 2010 | 5 | 10 |
| 2011 | 9 | 11 |
| 2012 | 6 | 14 |
| 2013 | 7 | 16 |
| 2014 | 14 | 12 |
| 2015 | 11 | 19 |
| 2016 | 13 | 15 |
| 2017 | 12 | 14 |
| 2018 | 12 | 17 |
| 2019 | 13 | 20 |
| 2020 | 18 | 13 |
| 2021 | 18 | 23 |
| 2022 | 8 | 37 |
| 2023 | 12 | 38 |
| 2024 | 21 | 53 |
| 2025 | 18 | 24 |
| 2026 | 10 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and system of microfluidic immunoassay using magnetic beads5 May 2026US 12,618,836 B2Revvity Health Sciences, Inc.
- Diagnostic assay device having microreactor28 Apr 2026US 12,613,242 B2Access Bio, Inc.
- Test device, method and assembly28 Apr 2026US 12,613,243 B1Charm Sciences, Inc.
- Antibody detection test strip of integrating primary screening and diagnosis of sheep brucellosis14 Apr 2026US 12,601,739 B2Institute of Animal Sciences of Chinese Academy of Agricultural Sciences
- Automatic test card for multi-blood group system and test method10 Mar 2026US 12,571,804 B2Chongqing University
- Lateral flow immunoassay device with increased detection signal intensity and method for detecting target material using the same24 Sep 2026US 2026/0284653 A1Pukyong National University Industry-University Cooperation Foundation
- Device for testing multiple analytes in liquid sample through lateral flow13 Aug 2026US 2026/0233217 A1
- Insulin patch pump18 Jun 2026US 2026/0166219 A1
- Absorbent article having vaginal discharge test strip, and vaginal discharge test strip for use in absorbent article4 Jun 2026US 2026/0151115 A1Unicharm Corporation
- Diffusional microfluidics4 Jun 2026US 2026/0153507 A1Nuclera Ltd
Most cited
By later US patents
- Capillary assays involving separation of free and bound species454US 6,103,537 AAclara Biosciences, Inc. · 2000
- Modified nucleosides, nucleotides, and nucleic acids, and uses thereof109US 9,334,328 B2Moderna Therapeutics, Inc. · 2016
- Microscale diffusion immunoassay108US 6,541,213 B1University of Washington · 2003
- Blot overlay assay using colloidal metal particles94US 4,775,636 AJanssen Pharmaceutica NV · 1988
- Purified human prostate antigen74US 4,446,122 AResearch Corporation · 1984