G02F 2/00
Demodulating light
Official title: Demodulating light; Transferring the modulation of modulated light; Frequency-changing of light (G02F1/35 takes precedence)
G02F2/00 (Demodulating light) appears on 704 US grants and 561 published applications in this corpus.
Search patents in G02F- Granted patents
- 704
- Published applications
- 561
- Assignees
- 382
- Inventors
- 1,465
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 22 | 0 |
| 1990 | 14 | 0 |
| 1991 | 13 | 0 |
| 1992 | 12 | 0 |
| 1993 | 10 | 0 |
| 1994 | 9 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 14 | 0 |
| 2000 | 8 | 0 |
| 2001 | 16 | 4 |
| 2002 | 23 | 31 |
| 2003 | 22 | 32 |
| 2004 | 24 | 31 |
| 2005 | 25 | 22 |
| 2006 | 31 | 18 |
| 2007 | 12 | 19 |
| 2008 | 20 | 6 |
| 2009 | 5 | 18 |
| 2010 | 15 | 21 |
| 2011 | 14 | 15 |
| 2012 | 11 | 22 |
| 2013 | 27 | 21 |
| 2014 | 18 | 22 |
| 2015 | 21 | 19 |
| 2016 | 19 | 20 |
| 2017 | 21 | 28 |
| 2018 | 23 | 35 |
| 2019 | 34 | 36 |
| 2020 | 23 | 30 |
| 2021 | 34 | 25 |
| 2022 | 19 | 28 |
| 2023 | 26 | 25 |
| 2024 | 23 | 11 |
| 2025 | 10 | 11 |
| 2026 | 5 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Interferometric resonator optical gyroscope with optical frequency comb5 May 2026US 12,618,674 B2Honeywell International Inc.
- Ultrafast detector of rydberg atoms5 May 2026US 12,618,884 B2Massachusetts Institute of Technology
- Phased-array radio frequency receiver and methods of operation21 Apr 2026US 12,609,445 B2Phase Sensitive Innovations, Inc.
- Optical comb generation device17 Mar 2026US 12,578,617 B2Suzhou Hyc Technology Co., Ltd.
- Current-assisted photonic demodulator with improved performances including intermediate electrodes17 Mar 2026US 12,578,619 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Dual comb generating apparatus and spectroscopy system including the same23 Jul 2026US 2026/0210850 A1Electronics and Telecommunications Research Institute
- Production method for optical upconversion organic film, optical upconversion organic film production device, and optical upconversion organic film16 Jul 2026US 2026/0201245 A1Idemitsu Kosan Co., Ltd.
- Display and Display Arrangement Comprising an Upconversion Material in Conjunction with a Photochromic and/or Photoelectrochromic Material16 Jul 2026US 2026/0202692 A1
- Frequency Down-Conversion Device and Communication Device23 Apr 2026US 2026/0110944 A1Tohok Uuniversity
- Solid-state, electronically controlled broadband thz modulator via organic electrochemical device9 Apr 2026US 2026/0100676 A1The Trustees of Princeton University
Most cited
By later US patents
- Nanocomposite materials with engineered properties395US 6,710,366 B1UltraDots, Inc. · 2004
- CW Laser wavemeter/frequency locking technique159US 4,631,498 AHewlett-Packard Company · 1986
- Flat-panel display137US 6,870,671 B2Cambridge 3D Display Limited · 2005
- Manganese doped upconversion luminescence nanoparticles136US 7,008,559 B2Nomadics, Inc. · 2006
- Wide bandwidth solid state optical source130US 5,208,462 AAllied-Signal Inc. · 1993