G01L 9/0002
Using variations in ohmic resistance
Official title: {using variations in ohmic resistance (G01L9/0051 takes precedence)}
G01L9/0002 (Using variations in ohmic resistance) appears on 138 US grants and 92 published applications in this corpus.
Search patents in G01L- Granted patents
- 138
- Published applications
- 92
- Assignees
- 130
- Inventors
- 323
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 3 |
| 2005 | 2 | 3 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 2 |
| 2010 | 1 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 1 | 4 |
| 2014 | 1 | 9 |
| 2015 | 1 | 1 |
| 2016 | 8 | 6 |
| 2017 | 5 | 7 |
| 2018 | 8 | 6 |
| 2019 | 5 | 6 |
| 2020 | 6 | 4 |
| 2021 | 5 | 7 |
| 2022 | 2 | 2 |
| 2023 | 8 | 10 |
| 2024 | 4 | 3 |
| 2025 | 7 | 4 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Monitoring sites of a fluid delivery infrastructure31 Mar 2026US 12,590,824 B2Orbis Intelligent Systems, Inc.
- Sensor device for fluid fitting10 Mar 2026US 12,571,691 B2Lenlok Holdings, LLC
- Pressure and temperature sensor11 Nov 2025US 12,467,815 B2Eagle Industry Co., Ltd.
- Flow-through pressure transducer2 Sep 2025US 12,405,181 B2WIKA Alexander Wiegand SE & Co. KG
- Semiconductor device and electronic apparatus with O-ring reinforcement structure12 Aug 2025US 12,385,796 B2Murata Manufacturing Co., Ltd.
- Monitoring sites of a fluid delivery infrastructure2 Jul 2026US 2026/0185861 A1Orbis Intelligent Systems, Inc.
- Assembly comprising a fluid fitting, sensor device, and casing18 Jun 2026US 2026/0168869 A1Lenlok Holdings, LLC
- Metal member for pressure sensor11 Jun 2026US 2026/0160623 A1TDK Corporation
- Pressure sensor7 May 2026US 2026/0126330 A1Churod Sensing Technologies (Suzhou) Co., Ltd
- Pressure sensors, and methods of assembling pressure sensors, for dynamic, high pressure, hydraulic systems26 Mar 2026US 2026/0085987 A1Illinois Tool Works Inc.
Most cited
By later US patents
- Angular displacement sensors219US 5,086,785 AAbrams/Gentille Entertainment Inc. · 1992
- Method and apparatus for providing controlled force transference to a wellbore tool200US 5,343,963 A1994
- Sensor array127US 4,795,998 ARaychem Corporation · 1989
- Circumferential pressure probe103US 4,873,990 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1989
- Method and apparatus for communicating coded messages in a wellbore87US 6,414,905 B1Baker Hughes Incorporated · 2002