G01L 7/00
Measuring the steady or quasi-steady pressure of a fluid or a fluent
Official title: Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements ({G01L11/004 takes precedence;} transmitting or indicating the displacement of mechanical pressure-sensitive elements by electric {, e.g., photoelectric} or magnetic means G01L9/00; measuring differences of two or more pressure values G01L13/00; measuring two or more pressure values simultaneously G01L15/00)
G01L7/00 (Measuring the steady or quasi-steady pressure of a fluid or a fluent) appears on 1,074 US grants and 833 published applications in this corpus.
Search patents in G01L- Granted patents
- 1,074
- Published applications
- 833
- Assignees
- 639
- Inventors
- 1,946
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 41 | 0 |
| 1977 | 41 | 0 |
| 1978 | 18 | 0 |
| 1979 | 21 | 0 |
| 1980 | 31 | 0 |
| 1981 | 21 | 0 |
| 1982 | 14 | 0 |
| 1983 | 14 | 0 |
| 1984 | 9 | 0 |
| 1985 | 19 | 0 |
| 1986 | 6 | 0 |
| 1987 | 13 | 0 |
| 1988 | 12 | 0 |
| 1989 | 9 | 0 |
| 1990 | 7 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 8 | 0 |
| 1998 | 9 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 2 |
| 2002 | 7 | 5 |
| 2003 | 16 | 6 |
| 2004 | 8 | 9 |
| 2005 | 4 | 8 |
| 2006 | 12 | 19 |
| 2007 | 10 | 8 |
| 2008 | 8 | 11 |
| 2009 | 10 | 9 |
| 2010 | 11 | 24 |
| 2011 | 7 | 16 |
| 2012 | 14 | 32 |
| 2013 | 25 | 58 |
| 2014 | 26 | 48 |
| 2015 | 50 | 93 |
| 2016 | 69 | 64 |
| 2017 | 75 | 53 |
| 2018 | 53 | 68 |
| 2019 | 62 | 52 |
| 2020 | 46 | 46 |
| 2021 | 32 | 50 |
| 2022 | 45 | 38 |
| 2023 | 39 | 45 |
| 2024 | 37 | 35 |
| 2025 | 35 | 21 |
| 2026 | 22 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for flexible multi-variable sensor29 Sep 2026US 12,747,967 B2Wisconsin Alumni Research Foundation
- Pressure gauge for an inflatable article29 Sep 2026US 12,748,005 B2Ventete Limited
- Downhole sensor apparatus, system, and related methods22 Sep 2026US 12,742,382 B2Baker Hughes Oilfield Operations LLC
- Pressure sensor, system for mounting and demounting of the pressure sensor and use of the pressure sensor15 Sep 2026US 12,736,427 B2Kistler Holding AG
- Pressure gauge1 Sep 2026US 12,723,936 B2Zhongshan Fumao Seal Technology Co., Ltd.
- Implant30 Jul 2026US 2026/0215735 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Pressure detection device16 Jul 2026US 2026/0202275 A1Surpass Industry Co., Ltd.
- Visual indicator of vacuum pressure in a pneumatic circuit16 Jul 2026US 2026/0202277 A1Coval
- Fluidic tactile sensor with tunable gap11 Jun 2026US 2026/0160622 A1Sanctuary Cognitive Systems (USA) Corporation
- Measurement method of three dimensional molding device28 May 2026US 2026/0145390 A1Seiko Epson Corporation
Most cited
By later US patents
- Systems for percutaneous bone and spinal stabilization, fixation and repair1,069US 6,127,597 ADiscoTech N.V. · 2000
- Priming, integrity and head height methods and apparatuses for medical fluid systems198US 7,575,564 B2Baxter Healthcare S. A. · 2009
- Differential fiber optic differential pressure sensor114US 4,210,029 ALad Research Industries, Inc. · 1980
- Depth measuring device for watches, and watches incorporating such a measuring device108US 7,778,115 B2Richemont International SA · 2010
- Displacement based pressure sensor measuring unsteady pressure in a pipe105US 6,463,813 B1Weatherford/Lamb, Inc. · 2002