G01N 30/90
Plate chromatography
Official title: Plate chromatography, e.g. thin layer or paper chromatography
G01N30/90 (Plate chromatography) appears on 395 US grants and 295 published applications in this corpus.
Search patents in G01N- Granted patents
- 395
- Published applications
- 295
- Assignees
- 276
- Inventors
- 937
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 9 | 0 |
| 1980 | 4 | 0 |
| 1981 | 12 | 0 |
| 1982 | 4 | 0 |
| 1983 | 8 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 12 | 0 |
| 1989 | 9 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 14 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 14 | 5 |
| 2002 | 12 | 14 |
| 2003 | 10 | 12 |
| 2004 | 16 | 12 |
| 2005 | 6 | 12 |
| 2006 | 7 | 8 |
| 2007 | 9 | 13 |
| 2008 | 4 | 9 |
| 2009 | 6 | 10 |
| 2010 | 9 | 14 |
| 2011 | 8 | 10 |
| 2012 | 0 | 10 |
| 2013 | 8 | 13 |
| 2014 | 12 | 11 |
| 2015 | 7 | 15 |
| 2016 | 8 | 9 |
| 2017 | 6 | 13 |
| 2018 | 8 | 11 |
| 2019 | 9 | 18 |
| 2020 | 9 | 14 |
| 2021 | 13 | 14 |
| 2022 | 6 | 10 |
| 2023 | 3 | 10 |
| 2024 | 9 | 11 |
| 2025 | 8 | 9 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and system for detection and analysis of chemical compounds in a sample subjected to a chromatographic separation on a layered separating medium29 Sep 2026US 12,748,088 B2Technion Research & Development Foundation Limited
- Chromatographic reader devices for biodetection2 Jun 2026US 12,644,826 B23M Innovative Properties Company
- Chromatographic reader devices for biodetection19 May 2026US 12,631,630 B23M Innovative Properties Company
- Method for separating biomolecules21 Apr 2026US 12,607,626 B2Cytiva Sweden AB
- Live-column visualization chromatography for separation of compounds14 Apr 2026US 12,601,720 B2AAdvance Instruments, LLC
- Method for preparing modified ligands for detecting ions8 Oct 2026US 2026/0309686 A1Vulcan Photonics Sdn. Bhd.
- System and method for thin layer chromatography10 Sep 2026US 2026/0266784 A1
- Method and device for extracting substances from the adsorbent layer of a chromatographic plate3 Sep 2026US 2026/0257150 A1Sfpe Sp. Z.O.O.
- Thin-layer chromatography identification method for characteristic components in anshen dingzhi wan20 Aug 2026US 2026/0243742 A1Anhui University of Chinese Medicine
- Method for Separating Biomolecules30 Jul 2026US 2026/0219264 A1Cytiva Sweden AB
Most cited
By later US patents
- Laser excited confocal microscope fluorescence scanner and method491US 5,091,652 AThe Regents of the University of California · 1992
- Process for immunochromatography with colloidal particles357US 5,120,643 AAbbott Laboratories · 1992
- Assays340US 5,602,040 AUnilever Patent Holdings B.V. · 1997
- Capillary immunoassay and device therefor comprising mobilizable particulate labelled reagents316US 5,622,871 AUnilever Patent Holdings B.V. · 1997
- Solid phase chromatographic immunoassay275US 5,591,645 ABecton, Dickinson and Company · 1997