G02F 1/3534
Three-wave interaction
Official title: {Three-wave interaction, e.g. sum-difference frequency generation (G02F1/3532 takes precedence)}
G02F1/3534 (Three-wave interaction) appears on 422 US grants and 368 published applications in this corpus.
Search patents in G02F- Granted patents
- 422
- Published applications
- 368
- Assignees
- 283
- Inventors
- 1,011
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 10 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 12 | 3 |
| 2002 | 8 | 20 |
| 2003 | 8 | 6 |
| 2004 | 22 | 12 |
| 2005 | 11 | 8 |
| 2006 | 9 | 13 |
| 2007 | 5 | 16 |
| 2008 | 16 | 11 |
| 2009 | 20 | 22 |
| 2010 | 14 | 12 |
| 2011 | 15 | 18 |
| 2012 | 7 | 17 |
| 2013 | 19 | 23 |
| 2014 | 20 | 12 |
| 2015 | 18 | 19 |
| 2016 | 14 | 16 |
| 2017 | 13 | 17 |
| 2018 | 15 | 12 |
| 2019 | 12 | 3 |
| 2020 | 9 | 19 |
| 2021 | 13 | 11 |
| 2022 | 8 | 19 |
| 2023 | 13 | 7 |
| 2024 | 5 | 25 |
| 2025 | 10 | 17 |
| 2026 | 14 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Differential frequency generation29 Sep 2026US 12,749,866 B2The United States of America as represented by the Secretary of the Air Force
- System and methods of visible light swept-source optical coherence tomography1 Sep 2026US 12,724,319 B2Northwestern University
- Ultraviolet laser light generation device25 Aug 2026US 12,719,227 B2Josho Gakuen Educational Foundation
- Multiple frequency laser system for treating skin conditions25 Aug 2026US 12,719,229 B2Candela Corporation
- Systems and methods for optical pulse shaping through nonlinear mixing7 Jul 2026US 12,675,024 B2Colorado School of Mines
- Controllable optical device24 Sep 2026US 2026/0287942 A1Brighterwave Oy
- Display apparatus24 Sep 2026US 2026/0287971 A1University of Southampton
- Laser apparatus, laser apparatus wavelength control method, and electronic device manufacturing method17 Sep 2026US 2026/0277108 A1Gigaphoton Inc.
- Non-collinear sum-frequency generation11 Jun 2026US 2026/0161043 A1Coherent LaserSystems GmbH & Co. KG
- High Power 193 Nanometer Continuous-Wave Laser Light21 May 2026US 2026/0142436 A1KLA Corporation
Most cited
By later US patents
- Methods and systems for introducing electromagnetic radiation into photonic crystals288US 5,999,308 AMassachusetts Institute of Technology · 1999
- Multiwavelength solid state laser using frequency conversion techniques234US 5,144,630 AJTT International, Inc. · 1992
- Ultraviolet solid state laser, method of using same and laser surgery apparatus135US 5,742,626 AAculight Corporation · 1998
- Monochromatic R,G,B laser light source display system and method101US 6,304,237 B1Corporation for Laser Optics Research · 2001
- Sensors employing nanoparticles and microcavities93US 6,781,690 B2New Mexico State University Technology Transfer Corporation · 2004