G02F 1/3536
Four-wave interaction
Official title: {Four-wave interaction}
G02F1/3536 (Four-wave interaction) appears on 347 US grants and 264 published applications in this corpus.
Search patents in G02F- Granted patents
- 347
- Published applications
- 264
- Assignees
- 188
- Inventors
- 682
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 12 | 0 |
| 1989 | 7 | 0 |
| 1990 | 13 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 6 | 13 |
| 2003 | 12 | 3 |
| 2004 | 8 | 5 |
| 2005 | 3 | 9 |
| 2006 | 9 | 3 |
| 2007 | 6 | 6 |
| 2008 | 7 | 6 |
| 2009 | 4 | 8 |
| 2010 | 5 | 13 |
| 2011 | 7 | 8 |
| 2012 | 10 | 6 |
| 2013 | 6 | 11 |
| 2014 | 12 | 10 |
| 2015 | 14 | 11 |
| 2016 | 16 | 9 |
| 2017 | 6 | 6 |
| 2018 | 6 | 12 |
| 2019 | 18 | 10 |
| 2020 | 12 | 11 |
| 2021 | 12 | 23 |
| 2022 | 13 | 21 |
| 2023 | 19 | 18 |
| 2024 | 6 | 20 |
| 2025 | 21 | 12 |
| 2026 | 10 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Photonic circuitry having multiple optical resonators11 Aug 2026US 12,704,763 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Quantum-state readout using four-wave mixing11 Aug 2026US 12,704,764 B2ColdQuanta, Inc.
- All-photonic artificial neural network processor via nonlinear optics11 Aug 2026US 12,705,476 B2Massachusetts Institute of Technology
- Heralded photonic entanglement source23 Jun 2026US 12,663,690 B2Arizona Board of Regents on Behalf of the University of Arizona
- Quantum-entangled photon-pair light source using chip-scale atomic vapor cell and implementation method thereof16 Jun 2026US 12,659,047 B2SDT Inc.
- Vacuum squeezed light producing device and vacuum squeezed light producing method6 Aug 2026US 2026/0227673 A1Tohoku University
- Ultra-bright, narrow linewidth photon source for generation of entangled photon pairs or heralded single photons6 Aug 2026US 2026/0227674 A1Qunnect, Inc.
- Optical parametric multi-pass apparatus, laser apparatus and method of generating laser radiation by an optical parametric process14 May 2026US 2026/0133465 A1Deutsches Elektronen-Synchrotron DESY
- Foundry-fabricated sources of broadband entanglement14 May 2026US 2026/0133467 A1
- Incommensurate optical frequency combs generated using floquet topological coupled resonator arrays5 Feb 2026US 2026/0036868 A1Northeastern University
Most cited
By later US patents
- Optical frequency shifter143US 5,619,368 AMassachusetts Inst. of Technology · 1997
- Optical communication system compensating for chromatic dispersion and phase conjugate light generator for use therewith94US 5,798,853 AFujitsu Limited · 1998
- System and method for nonlinear optical devices94US 9,000,347 B2Telcordia Technologies, Inc. · 2015
- Sensors employing nanoparticles and microcavities93US 6,781,690 B2New Mexico State University Technology Transfer Corporation · 2004
- Optical amplifier66US 9,065,243 B2Nippon Telegraph and Telephone Corporation · 2015