G01M 3/047
With photo-electrical detection means
Official title: {with photo-electrical detection means, e.g. using optical fibres}
G01M3/047 (With photo-electrical detection means) appears on 128 US grants and 115 published applications in this corpus.
Search patents in G01M- Granted patents
- 128
- Published applications
- 115
- Assignees
- 119
- Inventors
- 329
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 1 |
| 2004 | 2 | 6 |
| 2005 | 3 | 4 |
| 2006 | 5 | 1 |
| 2007 | 1 | 6 |
| 2008 | 3 | 8 |
| 2009 | 5 | 2 |
| 2010 | 4 | 10 |
| 2011 | 2 | 9 |
| 2012 | 3 | 4 |
| 2013 | 9 | 4 |
| 2014 | 5 | 2 |
| 2015 | 3 | 6 |
| 2016 | 5 | 4 |
| 2017 | 6 | 4 |
| 2018 | 2 | 1 |
| 2019 | 2 | 7 |
| 2020 | 6 | 6 |
| 2021 | 6 | 4 |
| 2022 | 5 | 7 |
| 2023 | 3 | 2 |
| 2024 | 2 | 7 |
| 2025 | 6 | 5 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cartridge for leakage detection sensor5 May 2026US 12,618,743 B2Autosensorkorea Co., Ltd.
- Leak detection27 Jan 2026US 12,535,377 B2Synovate Limited
- Autonomous fiber optic system for direct detection of CO2 leakage in carbon storage wells2 Dec 2025US 12,487,145 B2Lawrence Livermore National Security, LLC
- Leakage detection for pressurized fuel tanks7 Oct 2025US 12,436,056 B2Airbus Operations GmbH
- Fiber optic sensor network for subsurface impact protection system25 Mar 2025US 12,259,228 B2Saudi Arabian Oil Company
- Sensing assembly for a gas sensor for detecting a reactive gas4 Jun 2026US 2026/0153447 A1United Fiber Sensing Holding B.V.
- Integration of fiber optics and rarefaction wave for pipeline leak quantification28 May 2026US 2026/0146910 A1Cameron International Corporation
- Inverse Backscatter Absorption Gas Imaging14 May 2026US 2026/0133122 A1Wisconsin Alumni Research Foundation
- Leakage detection apparatus, leakage detection method, and non-transitory computer-readable medium19 Jun 2025US 2025/0198873 A1NEC Corporation
- Hydrogen leak detection system, hydrogen leak detection method, and hydrogen transport pipeline capable of hydrogen leak detection5 Jun 2025US 2025/0180426 A1Ls Cable & System Ltd.
Most cited
By later US patents
- Fiber optic temperature sensing184US 4,417,782 ARaychem Corporation · 1983
- Structural monitoring system using fiber optics95US 4,654,520 A1987
- Fibre optic sensor method and apparatus87US 7,564,540 B2Pure Technologies Ltd. · 2009
- Structural monitoring system using fiber optics78US 5,026,141 AG2 Systems Corporation · 1991
- Method and apparatus for monitoring lengths of hose74US 4,446,892 AMaxwell, Ltd. · 1984