G01N 27/70
And measuring current or voltage
Official title: and measuring current or voltage
G01N27/70 (And measuring current or voltage) appears on 116 US grants and 85 published applications in this corpus.
Search patents in G01N- Granted patents
- 116
- Published applications
- 85
- Assignees
- 71
- Inventors
- 227
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 4 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 5 |
| 2012 | 0 | 3 |
| 2013 | 0 | 3 |
| 2014 | 5 | 8 |
| 2015 | 3 | 10 |
| 2016 | 3 | 1 |
| 2017 | 7 | 6 |
| 2018 | 5 | 6 |
| 2019 | 6 | 8 |
| 2020 | 12 | 11 |
| 2021 | 4 | 5 |
| 2022 | 3 | 5 |
| 2023 | 3 | 1 |
| 2024 | 6 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid analysis system6 Jan 2026US 12,517,100 B2Regents of the University of Minnesota
- Burner including an electrical permittivity or electrical capacitance flame sensor30 Jul 2024US 12,050,151 B2Clearsign Technologies Corporation
- Variable composition gas mixture sensor11 Jun 2024US 12,007,301 B2Clearsign Technologies Corporation
- Dielectric barrier discharge ionization detector and gas chromatography analyzer7 May 2024US 11,977,059 B2Osaka University
- Gas and particle sensor using voltage and current behavior between electrodes during glow-to-arc transition16 Apr 2024US 11,959,878 B2Southwest Research Institute
- Burner including an electrical permittivity or electrical capacitance flame sensor7 Nov 2024US 2024/0369452 A1Clearsign Technologies Corporation
- Fluid analysis system26 Sep 2024US 2024/0319152 A1Regents of the University of Minnesota
- Gas and Particle Sensor Using Voltage and Current Behavior Between Electrodes During Glow-to-Arc Transition30 Mar 2023US 2023/0097032 A1Southwest Research Institute
- Chromatograph mass spectrometer9 Jun 2022US 2022/0178888 A1Shimadzu Corporation
- Gas Detector with an Ionizing Device5 May 2022US 2022/0136997 A1Inficon GmbH
Most cited
By later US patents
- Volatile organic compound sensor system69US 7,487,662 B2The University of Wyoming Research Corporation · 2009
- Refrigerant gas leak detector64US 5,351,037 AJ and N Associates, Inc. · 1994
- Alternating current discharge ionization detector53US 6,333,632 B1RAE Systems, Inc. · 2001
- High voltage spark excitation and ionization detector system40US 5,153,519 A1992
- Discharge ionization source39US 6,407,382 B1Technispan LLC · 2002