G03B 21/06
Affording only episcopic projection
Official title: affording only episcopic projection
G03B21/06 (Affording only episcopic projection) appears on 40 US grants and 27 published applications in this corpus.
Search patents in G03B- Granted patents
- 40
- Published applications
- 27
- Assignees
- 14
- Inventors
- 37
- Latest grant
- 23 Mar 2021
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 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 9 |
| 2005 | 1 | 2 |
| 2006 | 6 | 2 |
| 2007 | 2 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 3 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Projection television device and screen23 Mar 2021US 10,955,648 B2Seiko Epson Corporation
- Projected television device and screen15 Aug 2017US 9,733,459 B2Seiko Epson Corporation
- Projection television device and screen30 Aug 2016US 9,429,826 B2Seiko Epson Corporation
- Projection television device and screen22 Dec 2015US 9,217,912 B2Seiko Epson Corporation
- Energy efficient illumination apparatus and method for illuminating surfaces27 Jan 2015US 8,939,610 B2
- Filter apparatus31 Oct 2024US 2024/0360967 A1Panasonic Intellectual Property Management Co., Ltd.
- Projection television device and screen18 Apr 2019US 2019/0113726 A1Seiko Epson Corporation
- Projected television device and screen24 Nov 2016US 2016/0341943 A1Seiko Epson Corporation
- Projected television device and screen24 Nov 2016US 2016/0342075 A1Seiko Epson Corporation
- Projection television device and screen10 Mar 2016US 2016/0070158 A1Seiko Epson Corporation
Most cited
By later US patents
- Rear projection display device having multiple mirrors that are substantially parallel to a screen48US 6,896,375 B2InFocus Corporation · 2005
- Fresnel lens for use with rear projection display34US 6,804,055 B2InFocus Corporation · 2004
- Energy efficient illumination apparatus and method for illuminating surfaces25US 8,376,585 B22013
- Projection television device and screen23US 7,150,537 B2InFocus Corporation · 2006
- Projection device and screen22US 7,090,354 B2InFocus Corporation · 2006