G03B 21/08
Affording epidiascopic projection
Official title: affording epidiascopic projection
G03B21/08 (Affording epidiascopic projection) appears on 13 US grants and 9 published applications in this corpus.
Search patents in G03B- Granted patents
- 13
- Published applications
- 9
- Assignees
- 10
- Inventors
- 33
- Latest grant
- 20 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Illumination optical system, exposure apparatus, and article manufacturing method20 Sep 2022US 11,448,969 B2Canon Kabushiki Kaisha
- Optical projection device for an icon display element13 Sep 2016US 9,442,354 B2TRW Automotive Electronics & Components GmbH & Co. KG
- Apparatus and method for providing image-correction function in projector31 Jan 2012US 8,107,018 B2Samsung Electronics Co., Ltd.
- Real object projector9 Nov 2004US 6,814,447 B1Microtek International Inc.
- Reflection type projector9 Jul 1996US 5,534,955 AFuji Photo Film Co., Ltd.
- System and method for generating an image using a natural projection medium30 Jul 2026US 2026/0219564 A1Disney Enterprises, Inc.
- Filter apparatus31 Oct 2024US 2024/0360967 A1Panasonic Intellectual Property Management Co., Ltd.
- Illumination optical system, exposure apparatus, and article manufacturing method8 Dec 2022US 2022/0390853 A1Canon Kabushiki Kaisha
- Illumination optical system, exposure apparatus, and article manufacturing method6 Aug 2020US 2020/0249580 A1Canon Kabushiki Kaisha
- Optical projection device12 Dec 2013US 2013/0329197 A1TRW Automotive Electronics & Components GmbH & Co. KG
Most cited
By later US patents
- Short throw, oblique incidence, visual transparency projector9US 3,951,534 A1976
- Low profile episcopic projector9US 3,951,535 A1976
- Low profile episcopic projector and opaque materials therefor7US 3,947,103 A1976
- Low profile episcopic projector and opaque materials therefor7US 3,963,338 A1976
- Opaque projector5US 4,979,813 APlus Corporation · 1990