H04N 9/3164
Using multiple light sources
Official title: {using multiple light sources}
H04N9/3164 (Using multiple light sources) appears on 1,124 US grants and 1,319 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,124
- Published applications
- 1,319
- Assignees
- 305
- Inventors
- 1,760
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 8 | 0 |
| 2001 | 9 | 3 |
| 2002 | 9 | 11 |
| 2003 | 9 | 16 |
| 2004 | 14 | 13 |
| 2005 | 6 | 16 |
| 2006 | 12 | 19 |
| 2007 | 21 | 19 |
| 2008 | 10 | 45 |
| 2009 | 11 | 47 |
| 2010 | 20 | 46 |
| 2011 | 34 | 43 |
| 2012 | 33 | 57 |
| 2013 | 39 | 47 |
| 2014 | 50 | 43 |
| 2015 | 36 | 47 |
| 2016 | 50 | 76 |
| 2017 | 62 | 105 |
| 2018 | 106 | 110 |
| 2019 | 114 | 116 |
| 2020 | 104 | 107 |
| 2021 | 90 | 91 |
| 2022 | 85 | 74 |
| 2023 | 56 | 51 |
| 2024 | 51 | 44 |
| 2025 | 35 | 38 |
| 2026 | 25 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Illumination system and projection device6 Oct 2026US 12,754,469 B2Qisda Corporation
- Display system, non-transitory computer-readable storage medium storing program, and control device6 Oct 2026US 12,756,801 B2Seiko Epson Corporation
- Projection optical path and projection device25 Aug 2026US 12,717,152 B2Goertek Optical Technology Co., Ltd.
- Light-field projector having a small form factor25 Aug 2026US 12,717,158 B2Creal SA
- Illumination device, method of controlling illumination device, and projection display apparatus25 Aug 2026US 12,717,223 B2Sony Group Corporation
- Ultrahigh bandgap algan channel hemts with low contact resistance1 Oct 2026US 2026/0303761 A1
- Electronic instrument24 Sep 2026US 2026/0292110 A1Seiko Epson Corporation
- Projector24 Sep 2026US 2026/0292111 A1Seiko Epson Corporation
- Projection display device and white balance adjustment method17 Sep 2026US 2026/0281290 A1Hisense Laser Display Co., Ltd
- Light source, optical device, related device, and method3 Sep 2026US 2026/0259408 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- System and method employing LED light sources for a projection display246US 6,224,216 B1InFocus Corporation · 2001
- Light source device, optical device, and liquid-crystal display device134US 6,547,400 B1Seiko Epson Corporation · 2003
- Light source and display device105US 7,205,964 B1Seiko Epson Corporation · 2007
- Illumination system having a plurality of light source modules disposed in an array with a non-radially symmetrical aperture105US 7,300,177 B23M Innovative Properties Company · 2007
- Apparatus for condensing light from multiple sources using Bragg gratings100US 8,634,120 B2SBG Labs, Inc. · 2014