G03B 21/2013
Plural light sources
Official title: {Plural light sources}
G03B21/2013 (Plural light sources) appears on 1,269 US grants and 1,656 published applications in this corpus.
Search patents in G03B- Granted patents
- 1,269
- Published applications
- 1,656
- Assignees
- 320
- Inventors
- 1,783
- Latest grant
- 6 Oct 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 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 5 | 5 |
| 2003 | 3 | 6 |
| 2004 | 5 | 6 |
| 2005 | 4 | 21 |
| 2006 | 8 | 36 |
| 2007 | 21 | 30 |
| 2008 | 17 | 30 |
| 2009 | 14 | 29 |
| 2010 | 18 | 42 |
| 2011 | 23 | 39 |
| 2012 | 19 | 71 |
| 2013 | 46 | 71 |
| 2014 | 56 | 53 |
| 2015 | 58 | 78 |
| 2016 | 71 | 81 |
| 2017 | 75 | 80 |
| 2018 | 98 | 114 |
| 2019 | 94 | 135 |
| 2020 | 111 | 129 |
| 2021 | 101 | 129 |
| 2022 | 120 | 127 |
| 2023 | 106 | 98 |
| 2024 | 75 | 96 |
| 2025 | 56 | 93 |
| 2026 | 51 | 56 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Projector with improved configuration of cooling apparatus6 Oct 2026US 12,754,464 B2Seiko Epson Corporation
- Increased red content in high CRI high brightness light source6 Oct 2026US 12,754,466 B2Signify Holding B. V.
- Illumination system having multiple light source modules and projection device6 Oct 2026US 12,754,468 B2Coretronic Corporation
- Illumination system and projection device6 Oct 2026US 12,754,469 B2Qisda Corporation
- Beam splitter/combiner and projection apparatus29 Sep 2026US 12,748,314 B2Coretronic Corporation
- Projector8 Oct 2026US 2026/0310056 A1Seiko Epson Corporation
- Light source device and image display device8 Oct 2026US 2026/0310058 A1Sony Semiconductor Solutions Corporation
- Multicolor light mixing module1 Oct 2026US 2026/0299385 A1Qisda Corporation
- Illumination control method and illumination device1 Oct 2026US 2026/0299387 A1Seiko Epson Corporation
- Optical module and projector1 Oct 2026US 2026/0299389 A1Seiko Epson Corporation
Most cited
By later US patents
- Full-color projection display system using two light modulators149US 5,612,753 ATexas Instruments Incorporated · 1997
- Multi-color primary light generation in a projection system using LEDs105US 7,766,490 B2Koninklijke Philips Electronics N. V. · 2010
- Light source apparatus and projection apparatus79US 7,349,095 B2Casio Computer Co., Ltd. · 2008
- Methods and apparatus for providing uniform projection lighting68US 7,806,558 B2Koninklijke Philips Electronics N. V. · 2010
- Laminate type light-emitting diode device, and reflection type light-emitting diode unit65US 8,070,302 B2Iwasaki Electric Co., Ltd. · 2011