G02F 3/02
Optical bistable devices
G02F3/02 (Optical bistable devices) appears on 274 US grants and 129 published applications in this corpus.
Search patents in G02F- Granted patents
- 274
- Published applications
- 129
- Assignees
- 156
- Inventors
- 539
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 10 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 13 | 0 |
| 1989 | 19 | 0 |
| 1990 | 15 | 0 |
| 1991 | 12 | 0 |
| 1992 | 18 | 0 |
| 1993 | 14 | 0 |
| 1994 | 9 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 5 |
| 2003 | 2 | 1 |
| 2004 | 1 | 5 |
| 2005 | 4 | 1 |
| 2006 | 0 | 2 |
| 2007 | 4 | 10 |
| 2008 | 6 | 7 |
| 2009 | 5 | 4 |
| 2010 | 6 | 8 |
| 2011 | 6 | 3 |
| 2012 | 2 | 3 |
| 2013 | 2 | 3 |
| 2014 | 3 | 3 |
| 2015 | 2 | 3 |
| 2016 | 3 | 2 |
| 2017 | 5 | 2 |
| 2018 | 1 | 7 |
| 2019 | 8 | 7 |
| 2020 | 4 | 9 |
| 2021 | 3 | 3 |
| 2022 | 5 | 7 |
| 2023 | 7 | 12 |
| 2024 | 10 | 11 |
| 2025 | 8 | 7 |
| 2026 | 8 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Quantum-state readout using four-wave mixing11 Aug 2026US 12,704,764 B2ColdQuanta, Inc.
- Single-sided standing wave for exciting trapped ions28 Jul 2026US 12,695,078 B2Alpine Quantum Technologies GmbH
- Heralded photonic entanglement source23 Jun 2026US 12,663,690 B2Arizona Board of Regents on Behalf of the University of Arizona
- Selectively configurable photonic logic device14 Apr 2026US 12,601,954 B2
- Raster multiplexing in photonic circuits17 Feb 2026US 12,554,172 B2Psiquantum, Corp.
- Quantum system for performing a cnot gate and quantum system for performing a repetition code using the same10 Sep 2026US 2026/0268188 A1Alice & Bob
- Photonic Static Random Access Memory25 Jun 2026US 2026/0177883 A1Wisconsin Alumni Research Foundation
- Rasterized qubit delivery in photonic circuits18 Jun 2026US 2026/0169345 A1Psiquantum, Corp.
- Purely Optical XOR Logic Gate with Comprising Materials30 Apr 2026US 2026/0118735 A1
- Optoelectronic computing systems14 Aug 2025US 2025/0259049 A1Lightelligence PTE. Ltd.
Most cited
By later US patents
- Method and apparatus for electronic switching of a reflective color display227US 5,251,048 AKent State University · 1993
- Distributed resonant cavity light beam modulator127US 5,337,183 AYeda Research and Development Co. Ltd. · 1994
- Bistable element99US 8,774,572 B2Kyushu University, National University Corporation · 2014
- Apparatus and methods for optical neural network95US 10,268,232 B2Massachusetts Institute of Technology · 2019
- Bistable optical laser based on a heterostructure PNPN thyristor66US 5,349,599 A1994