G01L 11/006
Hydraulic or pneumatic counterbalancing forces
Official title: {hydraulic or pneumatic counterbalancing forces}
G01L11/006 (Hydraulic or pneumatic counterbalancing forces) appears on 32 US grants and 7 published applications in this corpus.
Search patents in G01L- Granted patents
- 32
- Published applications
- 7
- Assignees
- 27
- Inventors
- 63
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid pressure detector11 Aug 2026US 12,704,429 B1Safran Aerosystems Hydraulics
- Ludion pressure measurement system12 Jul 2022US 11,385,116 B2The United States of America as represented by the Secretary of the Navy
- High-temperature gas pressure measuring method29 May 2018US 9,983,080 B2National Chung Shan Institute of Science and Technology
- Pressure measurement in highly deviated wells19 Aug 2014US 8,807,212 B2Halliburton Energy Services.Inc.
- Pressure measurement in highly deviated wells3 Dec 2013US 8,596,353 B2Halliburton Energy Services.Inc.
- Ludion Pressure Measurement System25 Mar 2021US 2021/0088399 A1The United States of America as represented by the Secretary of the Navy
- Pore pressure monitoring device and method for monitoring pore water pressure1 Aug 2019US 2019/0234206 A1Fugro N.V.
- High-temperature gas pressure measuring method1 Jun 2017US 2017/0153160 A1National Chung Shan Institute of Science and Technology
- Pressure measurement in highly deviated wells27 Feb 2014US 2014/0054029 A1Halliburton Energy Services.Inc.
- Pressure measurement in highly deviated wells14 Jun 2012US 2012/0145383 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Pressure monitoring and leak detection method and apparatus114US 4,441,357 AMeadox Instruments, Inc. · 1984
- Wellbore pressure testing method and apparatus55US 4,252,015 APhillips Petroleum Company · 1981
- Fluid pressure transducer25US 4,517,842 AThe Slope Indicator Company · 1985
- Device for measuring the pressure of a liquid and method for regulating such a device23US 5,722,399 AHospal Industrie · 1998
- Pressure monitoring method and apparatus16US 4,393,878 AMeadox Instruments, Inc. · 1983