G02F 1/0955
Used as non-reciprocal devices
Official title: {used as non-reciprocal devices, e.g. optical isolators, circulators}
G02F1/0955 (Used as non-reciprocal devices) appears on 160 US grants and 144 published applications in this corpus.
Search patents in G02F- Granted patents
- 160
- Published applications
- 144
- Assignees
- 119
- Inventors
- 349
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 3 | 4 |
| 2005 | 3 | 10 |
| 2006 | 6 | 4 |
| 2007 | 5 | 3 |
| 2008 | 3 | 1 |
| 2009 | 1 | 9 |
| 2010 | 3 | 3 |
| 2011 | 3 | 3 |
| 2012 | 1 | 4 |
| 2013 | 3 | 6 |
| 2014 | 7 | 3 |
| 2015 | 7 | 6 |
| 2016 | 3 | 6 |
| 2017 | 8 | 10 |
| 2018 | 10 | 10 |
| 2019 | 4 | 4 |
| 2020 | 5 | 4 |
| 2021 | 3 | 10 |
| 2022 | 5 | 8 |
| 2023 | 6 | 6 |
| 2024 | 9 | 9 |
| 2025 | 7 | 10 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Optical isolator core and optical isolator22 Sep 2026US 12,742,981 B2Shenzhen Innowave Technology Co., Ltd.
- Focal polarization beam displacer30 Jun 2026US 12,669,637 B2Cisco Technology, Inc.
- Optical isolator with optical polarizers having high transmission, corrosion resistance and reduced thickness2 Jun 2026US 12,645,018 B2II-Vi Delaware, Inc.
- Optical isolator system28 Apr 2026US 12,613,437 B2Northrop Grumman Systems Corporation
- High gyrotropy photonic isolators directly on substrate24 Feb 2026US 12,560,832 B2Regents of the University of Minnesota
- Chip with multiple semiconductor optical amplifiers10 Sep 2026US 2026/0267062 A1Lyte Ai, Inc.
- Isolator and method of magnetization for isolator3 Sep 2026US 2026/0261028 A1KYOCERA Corporation
- Optical isolator23 Jul 2026US 2026/0211273 A1Shin-Etsu Chemical Co., Ltd.
- Optical Isolator with Optical Polarizers Having High Transmission, Corrosion Resistance and Reduced Thickness9 Jul 2026US 2026/0194699 A1II-Vi Delaware, Inc.
- Polarization-maintaining optical circulator18 Jun 2026US 2026/0169321 A1Shenzhen Innowave Technology Co., Ltd.
Most cited
By later US patents
- Optical waveguide and method for making the same69US 4,691,983 AHitachi, Ltd. · 1987
- Optical device68US 6,798,960 B2Matsushita Electric Industrial Co., Ltd. · 2004
- Optical nonreciprocal device65US 4,239,329 ANippon Telegraph & Telephone Public Corporation · 1980
- Optical fiber rod lens device and method of making same59US 5,384,874 ASumitomo Electric Industries, Ltd. · 1995
- Method and apparatus for detecting multiple optical wave lengths52US 7,356,224 B2Brown University Research Foundation · 2008