G02F 1/093
Used as non-reciprocal devices
Official title: {used as non-reciprocal devices, e.g. optical isolators, circulators (G02F1/0955 takes precedence)}
G02F1/093 (Used as non-reciprocal devices) appears on 541 US grants and 382 published applications in this corpus.
Search patents in G02F- Granted patents
- 541
- Published applications
- 382
- Assignees
- 246
- Inventors
- 908
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 11 | 0 |
| 1992 | 9 | 0 |
| 1993 | 10 | 0 |
| 1994 | 11 | 0 |
| 1995 | 13 | 0 |
| 1996 | 16 | 0 |
| 1997 | 11 | 0 |
| 1998 | 20 | 0 |
| 1999 | 25 | 0 |
| 2000 | 35 | 0 |
| 2001 | 32 | 5 |
| 2002 | 21 | 28 |
| 2003 | 22 | 35 |
| 2004 | 30 | 23 |
| 2005 | 17 | 20 |
| 2006 | 17 | 11 |
| 2007 | 15 | 7 |
| 2008 | 10 | 5 |
| 2009 | 4 | 13 |
| 2010 | 7 | 6 |
| 2011 | 5 | 9 |
| 2012 | 6 | 10 |
| 2013 | 10 | 14 |
| 2014 | 8 | 12 |
| 2015 | 10 | 18 |
| 2016 | 15 | 20 |
| 2017 | 16 | 12 |
| 2018 | 13 | 13 |
| 2019 | 8 | 19 |
| 2020 | 14 | 12 |
| 2021 | 5 | 12 |
| 2022 | 15 | 11 |
| 2023 | 10 | 20 |
| 2024 | 14 | 15 |
| 2025 | 15 | 15 |
| 2026 | 12 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for high-magnification photography exploiting reflective polarizers and faraday rotators25 Aug 2026US 12,717,122 B2Lumenuity, Inc.
- Paramagnetic garnet-type transparent ceramic, magneto-optical material, and magneto-optical device7 Jul 2026US 12,675,010 B2Shin-Etsu Chemical Co., Ltd.
- Optical isolator with optical polarizers having high transmission, corrosion resistance and reduced thickness2 Jun 2026US 12,645,018 B2II-Vi Delaware, Inc.
- Integrated isolator and circulator systems2 Jun 2026US 12,645,109 B2Voyant Phetonics, Inc.
- Optical isolator system28 Apr 2026US 12,613,437 B2Northrop Grumman Systems Corporation
- Method for manufacturing optical isolator and optical isolator8 Oct 2026US 2026/0310016 A1Nippon Electric Glass Co., Ltd.
- Integrated isolator and circulator systems17 Sep 2026US 2026/0277037 A1Voyant Photonics, Inc.
- Optical isolator for use in wavelength band of 780 to 820 nm10 Sep 2026US 2026/0267178 A1Shin-Etsu Chemical Co., Ltd.
- Optical element3 Sep 2026US 2026/0259440 A1
- Isolator and method of magnetization for isolator3 Sep 2026US 2026/0261028 A1KYOCERA Corporation
Most cited
By later US patents
- Method and apparatus for performing optical imaging using frequency-domain interferometry229US 7,733,497 B2The General Hospital Corporation · 2010
- Polarization independent optical isolator93US 5,033,830 AAT&T Bell Laboratories · 1991
- Optical circulator92US 5,204,771 ANippon Telegraph and Telephone Corporation · 1993
- Reflective optical non-reciprocal devices90US 5,471,340 AJDS Fitel Inc. · 1995
- Optical device88US 4,548,478 AFujitsu Limited · 1985