G03B 21/00
Projectors or projection-type viewers
Official title: Projectors or projection-type viewers; Accessories therefor (devices for changing pictures G03B23/00)
G03B21/00 (Projectors or projection-type viewers) appears on 15,263 US grants and 16,711 published applications in this corpus.
Search patents in G03B- Granted patents
- 15,263
- Published applications
- 16,711
- Assignees
- 2,773
- Inventors
- 18,187
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 126 | 0 |
| 1977 | 103 | 0 |
| 1978 | 122 | 0 |
| 1979 | 78 | 0 |
| 1980 | 91 | 0 |
| 1981 | 59 | 0 |
| 1982 | 60 | 0 |
| 1983 | 62 | 0 |
| 1984 | 54 | 0 |
| 1985 | 57 | 0 |
| 1986 | 45 | 0 |
| 1987 | 67 | 0 |
| 1988 | 66 | 0 |
| 1989 | 70 | 0 |
| 1990 | 98 | 0 |
| 1991 | 91 | 0 |
| 1992 | 88 | 0 |
| 1993 | 79 | 0 |
| 1994 | 74 | 0 |
| 1995 | 91 | 0 |
| 1996 | 80 | 0 |
| 1997 | 99 | 0 |
| 1998 | 121 | 0 |
| 1999 | 106 | 0 |
| 2000 | 117 | 0 |
| 2001 | 145 | 63 |
| 2002 | 199 | 238 |
| 2003 | 226 | 222 |
| 2004 | 251 | 403 |
| 2005 | 247 | 640 |
| 2006 | 389 | 793 |
| 2007 | 404 | 831 |
| 2008 | 394 | 651 |
| 2009 | 366 | 715 |
| 2010 | 450 | 683 |
| 2011 | 604 | 702 |
| 2012 | 528 | 668 |
| 2013 | 539 | 683 |
| 2014 | 544 | 655 |
| 2015 | 652 | 710 |
| 2016 | 671 | 739 |
| 2017 | 724 | 740 |
| 2018 | 731 | 881 |
| 2019 | 843 | 1075 |
| 2020 | 919 | 962 |
| 2021 | 768 | 850 |
| 2022 | 739 | 800 |
| 2023 | 613 | 617 |
| 2024 | 481 | 568 |
| 2025 | 422 | 465 |
| 2026 | 310 | 357 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G03B 21/14Details10,869
- G03B 21/54Accessories3,021
- G03B 21/005Projectors using an electronic spatial light modulator but not peculiar thereto2,148
- G03B 21/10Projectors with built-in or built-on screen1,366
- G03B 21/132Overhead projectors, i.e. capable of projecting hand-writing or drawing during action329
- G03B 21/001Slide projectors155
- G03B 21/13Projectors for producing special effects at the edges of picture116
- G03B 21/12Projectors or projection-type viewers: adapted for projection of either still pictures or45
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
- Electro-optical device and electronic apparatus8 Oct 2026US 2026/0310029 A1Seiko Epson 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
Most cited
By later US patents
- Three dimensional virtual and augmented reality display system577US 8,950,867 B2Magic Leap, Inc. · 2015
- 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