G03B 21/28
Reflectors in projection beam
Official title: Reflectors in projection beam {(in illumination beam G03B21/2066)}
G03B21/28 (Reflectors in projection beam) appears on 1,760 US grants and 2,115 published applications in this corpus.
Search patents in G03B- Granted patents
- 1,760
- Published applications
- 2,115
- Assignees
- 534
- Inventors
- 2,932
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 13 | 0 |
| 1998 | 13 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 12 | 7 |
| 2002 | 16 | 20 |
| 2003 | 24 | 16 |
| 2004 | 26 | 52 |
| 2005 | 24 | 50 |
| 2006 | 47 | 92 |
| 2007 | 27 | 96 |
| 2008 | 43 | 104 |
| 2009 | 39 | 85 |
| 2010 | 57 | 112 |
| 2011 | 102 | 116 |
| 2012 | 78 | 72 |
| 2013 | 86 | 98 |
| 2014 | 58 | 86 |
| 2015 | 85 | 91 |
| 2016 | 93 | 109 |
| 2017 | 98 | 95 |
| 2018 | 114 | 139 |
| 2019 | 125 | 136 |
| 2020 | 121 | 103 |
| 2021 | 101 | 124 |
| 2022 | 83 | 105 |
| 2023 | 67 | 84 |
| 2024 | 70 | 49 |
| 2025 | 50 | 39 |
| 2026 | 31 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Medical devices, systems, and methods for performing eye exams using displays comprising MEMS scanning mirrors15 Sep 2026US 12,733,805 B2Envision Diagnostics, Inc.
- Projection system and projector with intermediate image formed between first and second optical systems15 Sep 2026US 12,736,867 B2Seiko Epson Corporation
- Light source device8 Sep 2026US 12,730,368 B2Appotronics Corporation Limited
- Angle-adjustable projection mechanism and projector25 Aug 2026US 12,717,218 B2Zhongshan Bolang Electronic Technology Co., Ltd.
- Projection lens and projection device11 Aug 2026US 12,704,775 B2FUJIFILM Corporation
- Vacuum pump1 Oct 2026US 2026/0299394 A1Pfeiffer Vacuum GmbH
- Light guide device, projection device, and electronic device comprising same17 Sep 2026US 2026/0276993 A1LG Innotek Co., Ltd.
- Optical device and electronic device comprising same27 Aug 2026US 2026/0251901 A1LG Innotek Co., Ltd.
- Decorative item with holographic illusion6 Aug 2026US 2026/0227684 A1Mindscope Products
- Image projector6 Aug 2026US 2026/0227685 A1Canyon Product Development, LLC
Most cited
By later US patents
- Image display device and adjustment for alignment267US 6,631,994 B2Mitsubishi Denki Kabushiki Kaisha · 2003
- Color permuting light projector202US 7,543,943 B1Hewlett-Packard Development Company, L. P. · 2009
- Single crystal silicon arrayed devices with optical shield between transistor and substrate152US 6,317,175 B1Kopin Corporation · 2001
- Modular display system135US 6,611,241 B1Sarnoff Corporation · 2003
- Flat-panel optical projection apparatus126US 8,422,840 B2Microsoft Corporation · 2013