G02F 1/3544
Particular phase matching techniques
Official title: {Particular phase matching techniques}
G02F1/3544 (Particular phase matching techniques) appears on 473 US grants and 397 published applications in this corpus.
Search patents in G02F- Granted patents
- 473
- Published applications
- 397
- Assignees
- 318
- Inventors
- 1,150
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 9 | 0 |
| 1994 | 12 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 9 | 0 |
| 1998 | 16 | 0 |
| 1999 | 14 | 0 |
| 2000 | 10 | 0 |
| 2001 | 16 | 1 |
| 2002 | 6 | 14 |
| 2003 | 5 | 8 |
| 2004 | 20 | 10 |
| 2005 | 10 | 17 |
| 2006 | 15 | 8 |
| 2007 | 13 | 10 |
| 2008 | 10 | 22 |
| 2009 | 12 | 12 |
| 2010 | 22 | 26 |
| 2011 | 13 | 25 |
| 2012 | 16 | 20 |
| 2013 | 22 | 21 |
| 2014 | 17 | 6 |
| 2015 | 13 | 20 |
| 2016 | 16 | 14 |
| 2017 | 16 | 20 |
| 2018 | 20 | 11 |
| 2019 | 12 | 7 |
| 2020 | 18 | 18 |
| 2021 | 9 | 11 |
| 2022 | 17 | 21 |
| 2023 | 15 | 18 |
| 2024 | 10 | 27 |
| 2025 | 14 | 17 |
| 2026 | 12 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Third-harmonic frequency generator and generation method25 Aug 2026US 12,717,209 B2Cornell University
- Radiation source and a method for generating electromagnetic radiation at a plurality of frequencies18 Aug 2026US 12,712,332 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Wavelength conversion device4 Aug 2026US 12,699,304 B2Korea Research Institute of Standards and Science
- System and method for generating entangled photons13 Aug 2026US 2026/0235922 A1Ramot at Tel-Aviv University Ltd.
- Method and apparatus for the generation of second harmonic radiation by means of crystals with noncritical phase matching, with control over the relative phase between a fundamental electromagnetic field and an electromagnetic field with double frequency9 Jul 2026US 2026/0194785 A1LEOS S.r.L.
- Vertical cavity optical parametric oscillator2 Jul 2026US 2026/0186370 A1NTT Research, Inc.
- Method and device for high-quality poling lithium niobate devices18 Jun 2026US 2026/0169350 A1University of Rochester
- Segmented temperature controllable wavelength conversion device18 Jun 2026US 2026/0169351 A1HC Photonics Corp.
Most cited
By later US patents
- See-through display with an optical assembly including a wedge-shaped illumination system449US 8,467,133 B2Osterhout Group, Inc. · 2013
- Apparatus and method for the generation of high-power femtosecond pulses from a fiber amplifier193US 6,014,249 AImra America, Inc. · 2000
- Apparatus and method for the generation of high-power femtosecond pulses from a fiber amplifier173US 5,880,877 AImra America, Inc. · 1999
- Quasi-phase-matched parametric chirped pulse amplification systems150US 6,181,463 B2Imra America, Inc. · 2001
- Quasi-phase-matched parametric chirped pulse amplification systems147US 6,208,458 B1Imra America, Inc. · 2001