G01S 7/4917
Superposing optical signals in a photodetector
Official title: {superposing optical signals in a photodetector, e.g. optical heterodyne detection}
G01S7/4917 (Superposing optical signals in a photodetector) appears on 323 US grants and 425 published applications in this corpus.
Search patents in G01S- Granted patents
- 323
- Published applications
- 425
- Assignees
- 174
- Inventors
- 694
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 3 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 3 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 3 | 2 |
| 2014 | 2 | 3 |
| 2015 | 3 | 11 |
| 2016 | 3 | 6 |
| 2017 | 8 | 7 |
| 2018 | 5 | 11 |
| 2019 | 12 | 21 |
| 2020 | 17 | 33 |
| 2021 | 24 | 48 |
| 2022 | 33 | 69 |
| 2023 | 40 | 54 |
| 2024 | 49 | 63 |
| 2025 | 49 | 59 |
| 2026 | 37 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for converting a photonic signal, associated lidar and method29 Sep 2026US 12,748,187 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Device for converting a photonic signal, associated lidar and method29 Sep 2026US 12,748,188 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
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- Techniques for peak detection in a lidar system using weighted metrics and band selection18 Jun 2026US 2026/0169137 A1Aeva, Inc.
- Phase noise compensation for a frequency modulated continuous wave, fmcw, light detection and ranging, lidar, system18 Jun 2026US 2026/0169138 A1Stichting IMEC Nederland
Most cited
By later US patents
- Rf modulated optical beam distance measuring system and method99US 5,082,364 A1992
- Fiber optic micro-doppler ladar system and operating method therefor80US 5,847,816 AMcDonnell Douglas Corporation · 1998
- Scan mirrors for laser radar79US 9,638,799 B2Nikon Corporation · 2017
- Measurement system78US 9,605,998 B2Panasonic Intellectual Property Management Co., Ltd. · 2017
- Method for extending range and sensitivity of a fiber optic micro-doppler ladar system and apparatus therefor73US 5,847,817 AMcDonnell Douglas Corporation · 1998