G03B 21/16
Cooling
Official title: Cooling; Preventing overheating
G03B21/16 (Cooling) appears on 1,827 US grants and 2,351 published applications in this corpus.
Search patents in G03B- Granted patents
- 1,827
- Published applications
- 2,351
- Assignees
- 389
- Inventors
- 2,689
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 9 |
| 2002 | 21 | 23 |
| 2003 | 18 | 23 |
| 2004 | 28 | 51 |
| 2005 | 30 | 80 |
| 2006 | 53 | 108 |
| 2007 | 46 | 121 |
| 2008 | 35 | 81 |
| 2009 | 47 | 82 |
| 2010 | 63 | 106 |
| 2011 | 97 | 117 |
| 2012 | 70 | 92 |
| 2013 | 74 | 91 |
| 2014 | 59 | 82 |
| 2015 | 98 | 91 |
| 2016 | 93 | 96 |
| 2017 | 88 | 112 |
| 2018 | 105 | 113 |
| 2019 | 113 | 127 |
| 2020 | 129 | 149 |
| 2021 | 102 | 119 |
| 2022 | 94 | 128 |
| 2023 | 88 | 119 |
| 2024 | 57 | 99 |
| 2025 | 69 | 78 |
| 2026 | 67 | 54 |
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
- Heat dissipation module and projection device6 Oct 2026US 12,754,465 B2Coretronic Corporation
- Reflective diffusion device and projection device6 Oct 2026US 12,754,467 B2Coretronic Corporation
- Phosphor unit, light source device, and projector29 Sep 2026US 12,748,302 B2Seiko Epson Corporation
- Projection device29 Sep 2026US 12,748,345 B2Coretronic Corporation
- Laser reflection unit8 Oct 2026US 2026/0310055 A1Barco N.V.
- Projector8 Oct 2026US 2026/0310056 A1Seiko Epson Corporation
- Light source system, projection device, and adjustment method of position of light emitting unit8 Oct 2026US 2026/0310057 A1Coretronic Corporation
- Projector1 Oct 2026US 2026/0299384 A1Seiko Epson Corporation
- Wavelength conversion element, light source device, and projector1 Oct 2026US 2026/0299388 A1Seiko Epson Corporation
Most cited
By later US patents
- High intensity lighting projectors319US 5,282,121 AVari-Lite, Inc. · 1994
- Image display device and adjustment for alignment267US 6,631,994 B2Mitsubishi Denki Kabushiki Kaisha · 2003
- Polarized, LED-based illumination source176US 7,445,340 B23M Innovative Properties Company · 2008
- Cooling structure for projection apparatus166US 7,083,285 B2Coretronic Corporation · 2006
- Polarized, led-based illumination source153US 7,854,514 B23M Innovative Properties Company · 2010