H04N 23/21
From near infrared [nir] radiation
Official title: from near infrared [NIR] radiation
H04N23/21 (From near infrared [nir] radiation) appears on 335 US grants and 426 published applications in this corpus.
Search patents in H04N- Granted patents
- 335
- Published applications
- 426
- Assignees
- 245
- Inventors
- 965
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 2 |
| 2004 | 2 | 1 |
| 2005 | 1 | 3 |
| 2006 | 2 | 1 |
| 2007 | 2 | 4 |
| 2008 | 2 | 4 |
| 2009 | 4 | 6 |
| 2010 | 3 | 7 |
| 2011 | 3 | 11 |
| 2012 | 4 | 8 |
| 2013 | 7 | 15 |
| 2014 | 9 | 15 |
| 2015 | 16 | 32 |
| 2016 | 10 | 38 |
| 2017 | 24 | 30 |
| 2018 | 30 | 45 |
| 2019 | 30 | 22 |
| 2020 | 38 | 37 |
| 2021 | 27 | 29 |
| 2022 | 28 | 28 |
| 2023 | 26 | 27 |
| 2024 | 17 | 21 |
| 2025 | 27 | 21 |
| 2026 | 9 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Interactive object systems and methods15 Sep 2026US 12,734,455 B2Universal City Studios LLC
- Vehicular interior rearview mirror assembly with driver monitoring camera18 Aug 2026US 12,709,222 B2Magna Electronics Inc.
- Computationally enhanced low-performance infrared focal plane arrays12 May 2026US 12,627,902 B2Sivananthan Laboratories, Inc.
- Methods and system of enhanced near-infrared light absorption of imaging systems using metasurfaces and nanostructures12 May 2026US 12,628,463 B2Samsung Electronics Co., Ltd.
- Psychological state display system5 May 2026US 12,616,401 B2Panasonic Intellectual Property Management Co., Ltd.
- 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
- Wide-angle monocular tracking using markers20 Aug 2026US 2026/0245236 A1The Johns Hopkins University
- Quick screening method for assessing diabetic foot syndrome13 Aug 2026US 2026/0232202 A1
- Light projecting device23 Jul 2026US 2026/0208664 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Infrared and near-infrared camera hyperframing257US 7,606,484 B1FLIR Systems, Inc. · 2009
- Monolithic imager for near-IR228US 4,198,646 AHughes Aircraft Company · 1980
- Diffuse infrared light imaging system190US 6,556,858 B12003
- Bundling night vision and other driver assistance systems (DAS) using near infra red (NIR) illumination and a rolling shutter143US 9,179,072 B2Mobileye Vision Technologies Ltd. · 2015
- Optical differentiation between plants and background utilizing a single CCD camera125US 5,621,460 ALockheed Martin Corporation · 1997