G02F 1/3526
Using two-photon emission or absorption processes
Official title: {using two-photon emission or absorption processes}
G02F1/3526 (Using two-photon emission or absorption processes) appears on 124 US grants and 113 published applications in this corpus.
Search patents in G02F- Granted patents
- 124
- Published applications
- 113
- Assignees
- 98
- Inventors
- 329
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 1 | 2 |
| 2008 | 2 | 0 |
| 2009 | 1 | 9 |
| 2010 | 4 | 6 |
| 2011 | 4 | 2 |
| 2012 | 3 | 1 |
| 2013 | 5 | 6 |
| 2014 | 7 | 9 |
| 2015 | 1 | 4 |
| 2016 | 3 | 4 |
| 2017 | 5 | 5 |
| 2018 | 9 | 8 |
| 2019 | 10 | 3 |
| 2020 | 4 | 7 |
| 2021 | 3 | 5 |
| 2022 | 8 | 6 |
| 2023 | 7 | 7 |
| 2024 | 5 | 10 |
| 2025 | 11 | 8 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Encoder for quantum communications4 Aug 2026US 12,699,302 B2General Dynamics Mission Systems, Inc.
- Heralded photonic entanglement source23 Jun 2026US 12,663,690 B2Arizona Board of Regents on Behalf of the University of Arizona
- Measuring method for optical nonlinearity of two-dimensional material3 Mar 2026US 12,566,354 B2NTT, Inc.
- Nanophotonic parametric quantum information processor3 Feb 2026US 12,541,701 B2California Institute of Technology
- Cascadable photonic circuits with nonlinear amplitude thresholders28 Oct 2025US 12,455,491 B2Milkshake Technology Inc.
- Clock generation for a photonic quantum computer24 Sep 2026US 2026/0287970 A1Psiquantum, Corp.
- Method and system for alignment and/or stabilization of an entangled photon source6 Aug 2026US 2026/0227235 A1Quantum Industries Limited
- Ultra-bright, narrow linewidth photon source for generation of entangled photon pairs or heralded single photons6 Aug 2026US 2026/0227674 A1Qunnect, Inc.
- Method and system for stabilization of a laser beam for an entangled photon source6 Aug 2026US 2026/0229835 A1Quantum Industries Limited
- Two-photon light-sheet microscopy16 Jul 2026US 2026/0202656 A1Triplet Imaging, Inc.
Most cited
By later US patents
- Radiation pulse generation96US 4,958,910 ABritish Telecommunications Public Ltd.Co. · 1990
- Apparatus and methods for optical neural network95US 10,268,232 B2Massachusetts Institute of Technology · 2019
- Three-dimensional systems92US 4,288,861 AFormigraphic Engine Corporation · 1981
- Method and media for accessing data in three dimensions91US 4,471,470 AFormigraphic Engine Corporation · 1984
- Variable wavelength short pulse light generating device and method64US 6,618,531 B1Japan Science and Technology Corporation · 2003