G01N 27/227
Sensors changing capacitance upon adsorption or absorption of fluid components
Official title: {Sensors changing capacitance upon adsorption or absorption of fluid components, e.g. electrolyte-insulator-semiconductor sensors, MOS capacitors (G01N27/225 takes precedence)}
G01N27/227 (Sensors changing capacitance upon adsorption or absorption of fluid components) appears on 228 US grants and 301 published applications in this corpus.
Search patents in G01N- Granted patents
- 228
- Published applications
- 301
- Assignees
- 187
- Inventors
- 704
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 3 | 5 |
| 2006 | 1 | 0 |
| 2007 | 2 | 3 |
| 2008 | 4 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 5 |
| 2011 | 3 | 5 |
| 2012 | 2 | 7 |
| 2013 | 4 | 6 |
| 2014 | 7 | 14 |
| 2015 | 6 | 13 |
| 2016 | 13 | 23 |
| 2017 | 17 | 18 |
| 2018 | 9 | 16 |
| 2019 | 18 | 24 |
| 2020 | 19 | 44 |
| 2021 | 18 | 29 |
| 2022 | 23 | 11 |
| 2023 | 18 | 16 |
| 2024 | 18 | 25 |
| 2025 | 5 | 16 |
| 2026 | 17 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Analyte detection with redox active polymer-coated electrode9 Jun 2026US 12,650,427 B2Oxford University Innovation Limited
- Microchip gas sensing capacitor8 Oct 2026US 2026/0309666 A1Serinus Labs, Inc
- Systems and methods for measuring kinetic response of chemical sensor elements24 Sep 2026US 2026/0287535 A1Regents of the University of Minnesota
- Spray sensor system27 Aug 2026US 2026/0251606 A1Bioscout Pty Ltd
- Catalyst ink test method and catalyst ink test system30 Jul 2026US 2026/0219226 A1Honda Motor Co., Ltd.
- Humidity sensor production method23 Jul 2026US 2026/0209113 A1SüLeyman Demirel üNiversitesi Idari Ve Mali Isler Daire Baskanligi Genel Sekreterlik
Most cited
By later US patents
- Multiple chemically modulated capacitance determination400US 5,164,319 AMolecular Devices, LLC · 1992
- Method and apparatus for performing a lateral flow assay190US 6,136,610 APraxSys BioSystems, Inc. · 2000
- Specific material detection and measuring device87US 4,571,543 ASouthwest Medical Products, Incorporated · 1986
- Metal-insulator-semiconductor capacitor formed on silicon carbide84US 4,875,083 ANorth Carolina State University · 1989
- Capacitive chemical sensor for detecting certain analytes, including hydrocarbons in a liquid medium70US 4,728,882 AThe Johns Hopkins University · 1988