G01L 9/0027
Using variations in ohmic resistance
Official title: {using variations in ohmic resistance}
G01L9/0027 (Using variations in ohmic resistance) appears on 48 US grants and 43 published applications in this corpus.
Search patents in G01L- Granted patents
- 48
- Published applications
- 43
- Assignees
- 51
- Inventors
- 144
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 3 | 1 |
| 2006 | 2 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 4 |
| 2009 | 1 | 1 |
| 2010 | 2 | 1 |
| 2011 | 2 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 2 |
| 2017 | 3 | 1 |
| 2018 | 1 | 3 |
| 2019 | 2 | 1 |
| 2020 | 0 | 3 |
| 2021 | 4 | 8 |
| 2022 | 4 | 3 |
| 2023 | 6 | 1 |
| 2024 | 2 | 3 |
| 2025 | 3 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cylinder sensor assembly15 Sep 2026US 12,736,374 B2Enerpac Tool Group Corp.
- Combination pressure and temperature sensor26 May 2026US 12,638,354 B2Sensata Technologies, Inc.
- Downhole resistive membrane potentiometer for well systems9 Dec 2025US 12,492,629 B2Halliburton Energy Services.Inc.
- Flow-through pressure transducer2 Sep 2025US 12,405,181 B2WIKA Alexander Wiegand SE & Co. KG
- Connecting piece for fluid-conducting line systems20 May 2025US 12,306,056 B2VOSS Fluid GmbH
- Pressure sensors, and methods of assembling pressure sensors, for dynamic, high pressure, hydraulic systems26 Mar 2026US 2026/0085987 A1Illinois Tool Works Inc.
- Downhole resistive membrane potentiometer for well systems3 Jul 2025US 2025/0215785 A1Halliburton Energy Services.Inc.
- Cylinder sensor assembly17 Apr 2025US 2025/0123123 A1Enerpac Tool Group Corp.
- Tubular sensor with deformation body13 Jun 2024US 2024/0192070 A1WIKA Alexander Wiegand SE & Co. KG
- Combination pressure and temperature sensor30 May 2024US 2024/0175775 A1Sensata Technologies, Inc.
Most cited
By later US patents
- Fluid measuring device and method27US 6,957,588 B1Thomas P. Kicher & Co. · 2005
- Pressure sensor seal and method of use22US 8,752,436 B2Zevex, Inc. · 2014
- Downhole pressure gauge converter20US 5,499,533 A1996
- Pressure sensor11US 6,966,229 B2Presens AS · 2005
- Dual bourdon tube type sensing pressure transducer9US 4,718,279 ADwyer Instruments, Inc. · 1988