G02F 1/3131
In optical fibres
Official title: {in optical fibres}
G02F1/3131 (In optical fibres) appears on 73 US grants and 39 published applications in this corpus.
Search patents in G02F- Granted patents
- 73
- Published applications
- 39
- Assignees
- 46
- Inventors
- 144
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 4 |
| 2004 | 1 | 2 |
| 2005 | 0 | 2 |
| 2006 | 3 | 2 |
| 2007 | 3 | 0 |
| 2008 | 1 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 2 | 1 |
| 2020 | 1 | 0 |
| 2021 | 2 | 4 |
| 2022 | 1 | 1 |
| 2023 | 3 | 6 |
| 2024 | 5 | 4 |
| 2025 | 4 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tunable optical wedge for reducing crosstalk in wavelength selective switch1 Jul 2025US 12,345,998 B2II-Vi Delaware, Inc.
- Fibre optic integrated quantum memory for light10 Jun 2025US 12,327,589 B2National Research Council of Canada
- Multi-device wavelength selective switch27 May 2025US 12,317,012 B2II-Vi Delaware, Inc.
- Detectors, optical switches, and waveguides7 Jan 2025US 12,190,206 B2Quantum Source Labs Ltd.
- Resource for quantum computing12 Nov 2024US 12,141,659 B2Quantum Source Labs Ltd.
- Switchable quantum computing system18 Jun 2026US 2026/0170382 A1Quantum Source Labs Ltd.
- Detectors, optical switches, and waveguides7 May 2026US 2026/0127474 A1Quantum Source Labs Ltd.
- Coherent multi-beam optical phased array for rf beamforming9 Oct 2025US 2025/0317215 A1
- Multi-device optical switch28 Aug 2025US 2025/0274685 A1II-Vi Delaware, Inc.
- Quantum simulator using fiber loops9 Jan 2025US 2025/0012975 A1Corning Incorporated
Most cited
By later US patents
- Variable ratio fiber optic coupler optical signal processing element145US 5,136,669 ASperry Marine Inc. · 1992
- Variable coupler fiberoptic sensor143US 4,634,858 ASperry Corporation · 1987
- Optical device or switch for controlling radiation conducted in an optical waveguide134US 4,505,539 ASiemens Aktiengesellschaft · 1985
- Fibre optic coupler112US 4,786,130 AGeneral Electric Company · 1988
- Optical device87US 5,915,050 AUniversity of Southampton · 1999