G01C 19/72
With counter-rotating light beams in a passive ring
Official title: with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
G01C19/72 (With counter-rotating light beams in a passive ring) appears on 982 US grants and 520 published applications in this corpus.
Search patents in G01C- Granted patents
- 982
- Published applications
- 520
- Assignees
- 241
- Inventors
- 1,097
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 13 | 0 |
| 1982 | 9 | 0 |
| 1983 | 8 | 0 |
| 1984 | 14 | 0 |
| 1985 | 9 | 0 |
| 1986 | 12 | 0 |
| 1987 | 31 | 0 |
| 1988 | 23 | 0 |
| 1989 | 30 | 0 |
| 1990 | 13 | 0 |
| 1991 | 35 | 0 |
| 1992 | 46 | 0 |
| 1993 | 29 | 0 |
| 1994 | 50 | 0 |
| 1995 | 40 | 0 |
| 1996 | 23 | 0 |
| 1997 | 21 | 0 |
| 1998 | 26 | 0 |
| 1999 | 26 | 0 |
| 2000 | 16 | 0 |
| 2001 | 20 | 3 |
| 2002 | 16 | 9 |
| 2003 | 18 | 16 |
| 2004 | 10 | 16 |
| 2005 | 6 | 9 |
| 2006 | 15 | 13 |
| 2007 | 17 | 22 |
| 2008 | 22 | 19 |
| 2009 | 13 | 21 |
| 2010 | 18 | 35 |
| 2011 | 24 | 18 |
| 2012 | 21 | 21 |
| 2013 | 20 | 13 |
| 2014 | 21 | 22 |
| 2015 | 21 | 26 |
| 2016 | 19 | 23 |
| 2017 | 25 | 7 |
| 2018 | 13 | 25 |
| 2019 | 21 | 20 |
| 2020 | 22 | 22 |
| 2021 | 32 | 30 |
| 2022 | 23 | 22 |
| 2023 | 20 | 28 |
| 2024 | 16 | 33 |
| 2025 | 32 | 28 |
| 2026 | 17 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01C 19/721Details507
- G01C 19/727Using a passive ring resonator197
- G01C 19/726Phase nulling gyrometers, i.e. compensating the sagnac phase shift in a closed140
- G01C 19/725Using nxn optical couplers41
- G01C 19/728Assemblies for measuring along different axes37
- G01C 19/723Heterodyning fibre optic gyrometers16
Recent patents
- Integrated photonics optical gyroscopes with improved sensitivity utilizing high density silicon nitride waveguides15 Sep 2026US 12,736,748 B2Anello Photonics, Inc.
- Optical circuit for compensating optical lead fluctuations in an RFOG25 Aug 2026US 12,716,723 B2Honeywell International Inc.
- Phase modulation signal generating device for fiber-optic gyroscope23 Jun 2026US 12,663,266 B2Institute of Science Tokyo
- Generator for generating an anti-Kerr-effect modulated light signal, interferometry measuring device comprising such a generator, and method for modulating a light signal9 Jun 2026US 12,650,306 B2Centre National D'Etudes Spatiales
- Integrated photonics gyroscope with common intensity modulation26 May 2026US 12,638,290 B2Honeywell International Inc.
- Quantum-enhanced gyroscopes8 Oct 2026US 2026/0309495 A1Arizona Board of Regents on Behalf of the University of Arizona
- Integrated interferometric optical gyroscope, assembly, system, and method for calculating rotation speed information8 Oct 2026US 2026/0309496 A1Silith Technology Pte. Ltd.
- Systems and methods for measuring rotation and velocity24 Sep 2026US 2026/0287359 A1Sezanne Marine Limited
- Cold-atom and light-pulse interferometric system and method, for the on-board measurement of acceleration or rotation20 Aug 2026US 2026/0243571 A1Centre National De La Recherche Scientifique
- Thin-film lithium-niobate (tfln)-based modulator for fiber optic gyroscopes and other applications23 Jul 2026US 2026/0210717 A1Optilab, LLC
Most cited
By later US patents
- Apparatus and method for reducing phase errors in an interferometer240US 5,153,676 AThe Board of Trustees of the Leland Stanford Junior University · 1992
- Orientation measuring device216US 6,354,011 B1Pruftechnik Dieter Busch AG · 2002
- Method of mutually aligning bodies and position-measuring sensor therefor213US 6,195,615 B1Pruftechnik Dieter Busch AG · 2001
- System and method of winding a fog coil88US 6,522,826 B2Fibersense Technology Corporation · 2003
- Phase nulling optical gyro74US 4,299,490 AMcDonnell Douglas Corporation · 1981