G01L 1/24
Measuring force or stress, in general: by measuring variations of optical properties
Official title: by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis {using infrared, visible light, ultraviolet}
G01L1/24 (Measuring force or stress, in general: by measuring variations of optical properties) appears on 2,019 US grants and 2,014 published applications in this corpus.
Search patents in G01L- Granted patents
- 2,019
- Published applications
- 2,014
- Assignees
- 1,105
- Inventors
- 4,618
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 8 | 0 |
| 1980 | 3 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 12 | 0 |
| 1985 | 14 | 0 |
| 1986 | 13 | 0 |
| 1987 | 22 | 0 |
| 1988 | 21 | 0 |
| 1989 | 24 | 0 |
| 1990 | 16 | 0 |
| 1991 | 22 | 0 |
| 1992 | 15 | 0 |
| 1993 | 17 | 0 |
| 1994 | 19 | 0 |
| 1995 | 14 | 0 |
| 1996 | 13 | 0 |
| 1997 | 15 | 0 |
| 1998 | 19 | 0 |
| 1999 | 21 | 0 |
| 2000 | 15 | 0 |
| 2001 | 27 | 8 |
| 2002 | 21 | 27 |
| 2003 | 29 | 25 |
| 2004 | 28 | 41 |
| 2005 | 29 | 27 |
| 2006 | 30 | 29 |
| 2007 | 22 | 30 |
| 2008 | 26 | 42 |
| 2009 | 23 | 47 |
| 2010 | 34 | 49 |
| 2011 | 26 | 46 |
| 2012 | 32 | 66 |
| 2013 | 46 | 84 |
| 2014 | 68 | 88 |
| 2015 | 79 | 108 |
| 2016 | 103 | 122 |
| 2017 | 98 | 129 |
| 2018 | 112 | 127 |
| 2019 | 128 | 128 |
| 2020 | 121 | 119 |
| 2021 | 104 | 140 |
| 2022 | 85 | 128 |
| 2023 | 115 | 143 |
| 2024 | 117 | 100 |
| 2025 | 122 | 91 |
| 2026 | 60 | 70 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Demodulation system for optical fiber Fabry-Perot sensor6 Oct 2026US 12,754,045 B2Beijing Bywave Sensing Technology Co., Ltd.
- Optical tactile sensor6 Oct 2026US 12,754,084 B2The Board of Trustees of the Leland Stanford Junior University
- Systems and methods for determining force exerted by and/or weight of an object6 Oct 2026US 12,754,085 B2
- Optical tactile sensor6 Oct 2026US 12,755,401 B2Samsung Electronics Co., Ltd.
- Stress and displacement sensors and methods of sensing29 Sep 2026US 12,748,002 B2University of Oregon
- Force sensor and methods of making and using same8 Oct 2026US 2026/0309559 A1
- Cluster efficiency evaluation using strain observation from a monitoring well8 Oct 2026US 2026/0309884 A1Schlumberger Technology Corporation
- Device, method and system for quantifying a change in environmental conditions along the length of an optical fiber1 Oct 2026US 2026/0298675 A1Bundesrepublik Deutschland, vertreten durch den Bundesminister für Wirtschaft und Klimaschutz
- Sensor device for detecting an event1 Oct 2026US 2026/0298738 A1ams-OSRAM AG
- Method and system for monitoring icicles based on adhesive optical fibers1 Oct 2026US 2026/0298739 A1Shandong University
Most cited
By later US patents
- Robotic instrument systems and methods utilizing optical fiber sensor1,319US 9,186,046 B2Koninklijke Philips Electronics N. V. · 2015
- Force and torque sensing for surgical instruments1,174US 8,945,095 B2Intuitive Surgical Operations, Inc. · 2015
- Fiber optic sensor for precision 3-D position measurement324US 6,888,623 B2Dynamic Technology, Inc. · 2005
- Ribbed force sensor290US 8,621,939 B2Intuitive Surgical Operations, Inc. · 2014
- Touch position sensitive surface279US 4,484,179 AAT&T Bell Laboratories · 1984