G02B 6/29347
Loop interferometers
Official title: {Loop interferometers, e.g. Sagnac, loop mirror}
G02B6/29347 (Loop interferometers) appears on 40 US grants and 59 published applications in this corpus.
Search patents in G02B- Granted patents
- 40
- Published applications
- 59
- Assignees
- 41
- Inventors
- 120
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 20 |
| 2003 | 1 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 5 |
| 2015 | 3 | 0 |
| 2016 | 1 | 4 |
| 2017 | 3 | 2 |
| 2018 | 3 | 2 |
| 2019 | 3 | 2 |
| 2020 | 3 | 4 |
| 2021 | 5 | 6 |
| 2022 | 1 | 1 |
| 2023 | 4 | 4 |
| 2024 | 0 | 0 |
| 2025 | 4 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Systems and methods for effective relative intensity noise subtraction for a broadband resonator optical gyroscope19 Aug 2025US 12,392,612 B2Honeywell International Inc.
- Integrated photonics optical gyroscopes optimized for autonomous vehicles22 Apr 2025US 12,281,898 B2Anello Photonics, Inc.
- Ring-resonator filter device22 Apr 2025US 12,282,188 B2Furukawa Electric Co., Ltd.
- Optical filter and wavelength tunable laser element14 Jan 2025US 12,197,003 B2National University Corporation Hokkaido University
- Fiber optic temperature sensor and sensing head structure19 Sep 2023US 11,761,827 B2Guangdong Ocean University
- Systems and methods for effective relative intensity noise subtraction for a broadband resonator optical gyroscope3 Apr 2025US 2025/0109941 A1Honeywell International Inc.
- Passive optical sagnac interferometer for current sensing9 Jan 2025US 2025/0012831 A1Smart Digital Optics Pty Ltd
- Integrated photonics optical gyroscopes optimized for autonomous vehicles21 Sep 2023US 2023/0296381 A1Anello Photonics, Inc.
- Fiber optic temperature sensor and sensing head structure15 Jun 2023US 2023/0184596 A1Guangdong Ocean University
- Optical filter and wavelength tunable laser element23 Mar 2023US 2023/0089696 A1National University Corporation Hokkaido University
Most cited
By later US patents
- Low distortion all-optical threshold device18US 5,146,517 AAT&T Bell Laboratories · 1992
- High efficiency fiber absorber and method for attenuating pump light in a broadband fiber optic light source14US 5,231,465 ALitton Systems, Inc. · 1993
- Low dispersion interleaver13US 6,683,721 B2JDS Uniphase Corporation · 2004
- Integrated photonic devices with reduced sensitivity to external influences11US 9,075,251 B2Imec · 2015
- Bulk optical interferometer10US 6,785,000 B2JDS Uniphase Corporation · 2004