H04N 23/20
Cameras or camera modules comprising electronic image sensors: for generating image signals
Official title: for generating image signals from infrared radiation only
H04N23/20 (Cameras or camera modules comprising electronic image sensors: for generating image signals) appears on 3,895 US grants and 4,244 published applications in this corpus.
Search patents in H04N- Granted patents
- 3,895
- Published applications
- 4,244
- Assignees
- 1,602
- Inventors
- 7,684
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 10 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 9 | 0 |
| 1983 | 11 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 15 | 0 |
| 1987 | 24 | 0 |
| 1988 | 18 | 0 |
| 1989 | 18 | 0 |
| 1990 | 11 | 0 |
| 1991 | 20 | 0 |
| 1992 | 17 | 0 |
| 1993 | 13 | 0 |
| 1994 | 17 | 0 |
| 1995 | 19 | 0 |
| 1996 | 21 | 0 |
| 1997 | 27 | 0 |
| 1998 | 29 | 0 |
| 1999 | 37 | 0 |
| 2000 | 26 | 0 |
| 2001 | 27 | 3 |
| 2002 | 19 | 32 |
| 2003 | 24 | 38 |
| 2004 | 34 | 74 |
| 2005 | 15 | 46 |
| 2006 | 51 | 46 |
| 2007 | 45 | 54 |
| 2008 | 44 | 68 |
| 2009 | 47 | 75 |
| 2010 | 60 | 70 |
| 2011 | 52 | 83 |
| 2012 | 64 | 96 |
| 2013 | 80 | 155 |
| 2014 | 91 | 179 |
| 2015 | 119 | 261 |
| 2016 | 180 | 349 |
| 2017 | 268 | 326 |
| 2018 | 288 | 324 |
| 2019 | 299 | 332 |
| 2020 | 356 | 337 |
| 2021 | 288 | 345 |
| 2022 | 263 | 301 |
| 2023 | 251 | 203 |
| 2024 | 235 | 190 |
| 2025 | 196 | 144 |
| 2026 | 109 | 113 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for providing a thermal image of a thermal imaging camera with an increased resolution6 Oct 2026US 12,755,347 B2Robert Bosch GmbH
- Using a thermal camera for detection of arthritis6 Oct 2026US 12,755,376 B2Seattle Children's Hospital
- Security robot having image stabilization function29 Sep 2026US 12,746,696 B2Seorobotics Co., Ltd.
- Interactive object systems and methods15 Sep 2026US 12,734,455 B2Universal City Studios LLC
- Infrared vision positioning method for concrete pumping liquid level in tube of steel tubular arch bridge8 Sep 2026US 12,729,995 B2Chongqing Jiaotong University
- Measurement of surface roughness8 Oct 2026US 2026/0311352 A1Trinamix GmbH
- Thermal camera lens designwith improved center-field detection range1 Oct 2026US 2026/0303933 A1Microsoft Technology Licensing, LLC
- Cascaded type ii superlattice infrared detector operating at 300 k1 Oct 2026US 2026/0305000 A1Firefly Photonics, LLC
- Health-monitoring feeder24 Sep 2026US 2026/0283120 A1
- Modular sensor fusion platform for hydrocarbon storage equipment monitoring24 Sep 2026US 2026/0287460 A1Clean Connect Al, Inc.
Most cited
By later US patents
- Augmented surgical reality environment965US 10,152,789 B2Covidien LP · 2018
- Digital micro-mirror based image simulation system674US 5,457,493 ATexas Instruments Incorporated · 1995
- Night vision system with color video camera578US 5,001,558 AGeneral Motors Corporation · 1991
- Interactive video display system533US 7,259,747 B2Reactrix Systems, Inc. · 2007
- FLIR system with two optical channels for observing a wide and a narrow field of view521US 5,005,083 ASiemens Aktiengesellschaft · 1991