G03B 21/14
Details
G03B21/14 (Details) appears on 10,869 US grants and 13,083 published applications in this corpus.
Search patents in G03B- Granted patents
- 10,869
- Published applications
- 13,083
- Assignees
- 1,873
- Inventors
- 12,729
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 52 | 0 |
| 1977 | 40 | 0 |
| 1978 | 39 | 0 |
| 1979 | 18 | 0 |
| 1980 | 23 | 0 |
| 1981 | 10 | 0 |
| 1982 | 9 | 0 |
| 1983 | 19 | 0 |
| 1984 | 10 | 0 |
| 1985 | 10 | 0 |
| 1986 | 11 | 0 |
| 1987 | 12 | 0 |
| 1988 | 9 | 0 |
| 1989 | 13 | 0 |
| 1990 | 19 | 0 |
| 1991 | 14 | 0 |
| 1992 | 22 | 0 |
| 1993 | 19 | 0 |
| 1994 | 18 | 0 |
| 1995 | 35 | 0 |
| 1996 | 29 | 0 |
| 1997 | 49 | 0 |
| 1998 | 55 | 0 |
| 1999 | 49 | 0 |
| 2000 | 52 | 0 |
| 2001 | 77 | 35 |
| 2002 | 103 | 123 |
| 2003 | 120 | 117 |
| 2004 | 135 | 238 |
| 2005 | 144 | 422 |
| 2006 | 270 | 601 |
| 2007 | 273 | 590 |
| 2008 | 268 | 455 |
| 2009 | 259 | 472 |
| 2010 | 321 | 495 |
| 2011 | 428 | 565 |
| 2012 | 355 | 530 |
| 2013 | 424 | 609 |
| 2014 | 449 | 551 |
| 2015 | 548 | 602 |
| 2016 | 578 | 604 |
| 2017 | 607 | 575 |
| 2018 | 620 | 705 |
| 2019 | 700 | 917 |
| 2020 | 764 | 804 |
| 2021 | 655 | 711 |
| 2022 | 623 | 666 |
| 2023 | 515 | 520 |
| 2024 | 375 | 480 |
| 2025 | 352 | 401 |
| 2026 | 270 | 295 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03B 21/20Lamp housings6,032
- G03B 21/16Cooling1,827
- G03B 21/28Reflectors in projection beam1,760
- G03B 21/145Housing details1,276
- G03B 21/142Adjusting of projection optics1,044
- G03B 21/26Projecting separately subsidiary matter simultaneously with main image580
- G03B 21/147Optical correction of image distortions568
- G03B 21/32Details specially adapted for motion-picture projection378
Recent patents
- Projection optical system and projector6 Oct 2026US 12,754,405 B2Seiko Epson Corporation
- Selective visualization of an image using second pass-through of polarized light6 Oct 2026US 12,754,439 B2Disney Enterprises, Inc.
- Pixel shifting device and projector6 Oct 2026US 12,754,463 B2Seiko Epson Corporation
- 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
- 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
- Light source device and image display device8 Oct 2026US 2026/0310058 A1Sony Semiconductor Solutions Corporation
- Light source system and projection device8 Oct 2026US 2026/0310059 A1XGIMI Technology CO., LTD
Most cited
By later US patents
- Interactive video display system533US 7,259,747 B2Reactrix Systems, Inc. · 2007
- Adaptive and interactive scene illumination497US 7,227,611 B2The Boeing Company · 2007
- Interactive video display system484US 7,834,846 B12010
- High intensity lighting projectors319US 5,282,121 AVari-Lite, Inc. · 1994
- Emission of visible light in response to absorption of excitation light315US 7,213,923 B2Superimaging, Inc. · 2007