G01D 5/35303
Using a reference fibre
Official title: {using a reference fibre, e.g. interferometric devices}
G01D5/35303 (Using a reference fibre) appears on 322 US grants and 282 published applications in this corpus.
Search patents in G01D- Granted patents
- 322
- Published applications
- 282
- Assignees
- 205
- Inventors
- 658
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 7 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 0 | 0 |
| 2002 | 6 | 7 |
| 2003 | 4 | 6 |
| 2004 | 8 | 16 |
| 2005 | 13 | 29 |
| 2006 | 20 | 18 |
| 2007 | 18 | 20 |
| 2008 | 20 | 21 |
| 2009 | 12 | 16 |
| 2010 | 10 | 27 |
| 2011 | 15 | 17 |
| 2012 | 17 | 17 |
| 2013 | 11 | 13 |
| 2014 | 13 | 6 |
| 2015 | 13 | 6 |
| 2016 | 12 | 8 |
| 2017 | 13 | 9 |
| 2018 | 6 | 7 |
| 2019 | 12 | 8 |
| 2020 | 5 | 5 |
| 2021 | 4 | 7 |
| 2022 | 7 | 7 |
| 2023 | 8 | 3 |
| 2024 | 2 | 8 |
| 2025 | 4 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical fiber sensor utilizing faraday rotator mirrors and measuring system using the same12 May 2026US 12,624,973 B2Hakusan Inc.
- Quantum sensing and computing using cascaded phases30 Sep 2025US 12,429,365 B2The Regents of the University of Colorado
- Redundant core in multicore optical fiber for safety9 Sep 2025US 12,411,278 B2Intuitive Surgical Operations, Inc.
- Optical fiber-based hydrophone2 Sep 2025US 12,405,157 B2Optics11 B.V.
- Method and apparatus for optical sensing29 Apr 2025US 12,287,235 B2Silixa Ltd.
- Redundant core in multicore optical fiber for safety4 Dec 2025US 2025/0369745 A1Intuitive Surgical Operations, Inc.
- Optical fiber state measuring device and optical fiber state measuring method19 Sep 2024US 2024/0310192 A1Nippon Telegraph and Telephone Corporation
- Fiber bragg grating sensor with resonant cavity led12 Sep 2024US 2024/0302230 A1CTS Corporation
- Optical fiber-based hydrophone29 Aug 2024US 2024/0288302 A1Optics11 B.V.
- Fibre Optic Sensing15 Aug 2024US 2024/0271970 A1Optasense Holdings Limited
Most cited
By later US patents
- Fiber optic position and shape sensing device and method relating thereto229US 7,781,724 B2Luna Innovations Incorporated · 2010
- Optical modulation apparatus and measurement method198US 5,091,983 A1992
- Fiber grating-based sensing system with interferometric wavelength-shift detection119US 5,361,130 AThe United States of America as represented by the Secretary of the Navy · 1994
- Imaging rotation angle absolute encoder108US 7,135,673 B2The Boeing Company · 2006
- Fiber optic grating sensor systems for sensing environmental effects101US 5,380,995 AMcDonnell Douglas Corporation · 1995