G01L 11/02
Measuring steady or quasi-steady pressure of a fluid or a fluent solid
Official title: by optical means
G01L11/02 (Measuring steady or quasi-steady pressure of a fluid or a fluent solid) appears on 539 US grants and 462 published applications in this corpus.
Search patents in G01L- Granted patents
- 539
- Published applications
- 462
- Assignees
- 388
- Inventors
- 1,344
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 11 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 9 | 0 |
| 1989 | 4 | 0 |
| 1990 | 13 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 12 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 2 |
| 2002 | 10 | 6 |
| 2003 | 12 | 8 |
| 2004 | 8 | 16 |
| 2005 | 8 | 9 |
| 2006 | 14 | 16 |
| 2007 | 14 | 20 |
| 2008 | 13 | 11 |
| 2009 | 4 | 6 |
| 2010 | 11 | 16 |
| 2011 | 6 | 11 |
| 2012 | 9 | 11 |
| 2013 | 15 | 27 |
| 2014 | 11 | 17 |
| 2015 | 10 | 28 |
| 2016 | 26 | 34 |
| 2017 | 31 | 22 |
| 2018 | 19 | 37 |
| 2019 | 19 | 12 |
| 2020 | 29 | 24 |
| 2021 | 22 | 30 |
| 2022 | 25 | 20 |
| 2023 | 20 | 28 |
| 2024 | 22 | 25 |
| 2025 | 23 | 18 |
| 2026 | 10 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Optical fiber-based tsunami warning system using submarine telecommunication cables15 Sep 2026US 12,736,375 B2California Institute of Technology
- Dual cavity interferometer sensor system1 Sep 2026US 12,723,938 B2Intelligent Fiber Optic Systems, Inc.
- Semiconductor devices to detect one or more environmental conditions25 Aug 2026US 12,720,852 B2Analog Devices International Unlimited Company
- Optical fiber pressure sensor using thermal pressure sensing9 Jun 2026US 12,650,352 B2Centre National De La Recherche Scientifique
- Multi-channel optical pressure sensor2 Jun 2026US 12,642,956 B2ABIOMED, Inc.
- Integrated carbon sequestration injection control system27 Aug 2026US 2026/0251037 A1FMC Technologies, Inc.
- Device for measuring a physical quantity13 Aug 2026US 2026/0235421 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Real ear sound pressure level measurement for a hearing device25 Jun 2026US 2026/0177442 A1Starkey Laboratories, Inc.
- Pressure measurement method, information processing device, and program4 Jun 2026US 2026/0153392 A1FUJIFILM Corporation
- Fibre-optic pressure sensor23 Apr 2026US 2026/0110587 A1Somni Corporation B.V.
Most cited
By later US patents
- Fluid flow sensing apparatus for in vivo and industrial applications employing novel differential optical fiber pressure sensors260US 5,178,153 A1993
- Apparatus and method for fiber optic intrusion sensing227US 5,194,847 AThe Texas A&M University System · 1993
- Fiber optic strain sensor213US 4,295,738 AUnited Technologies Corporation · 1981
- Multi-parameter fiber optic sensor for use in harsh environments184US 5,892,860 ACiDRA Corporation · 1999
- High sensitivity fiber optic pressure sensor for use in harsh environments150US 6,016,702 ACiDRA Corporation · 2000