G02B 27/148
Including stacked surfaces having at least one double-pass partially reflecting surface
Official title: {including stacked surfaces having at least one double-pass partially reflecting surface}
G02B27/148 (Including stacked surfaces having at least one double-pass partially reflecting surface) appears on 194 US grants and 161 published applications in this corpus.
Search patents in G02B- Granted patents
- 194
- Published applications
- 161
- Assignees
- 87
- Inventors
- 285
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 5 | 0 |
| 2001 | 13 | 2 |
| 2002 | 10 | 13 |
| 2003 | 8 | 7 |
| 2004 | 6 | 8 |
| 2005 | 6 | 7 |
| 2006 | 6 | 8 |
| 2007 | 4 | 2 |
| 2008 | 5 | 6 |
| 2009 | 2 | 6 |
| 2010 | 8 | 5 |
| 2011 | 3 | 7 |
| 2012 | 3 | 0 |
| 2013 | 2 | 1 |
| 2014 | 1 | 3 |
| 2015 | 2 | 3 |
| 2016 | 1 | 5 |
| 2017 | 12 | 17 |
| 2018 | 11 | 14 |
| 2019 | 9 | 6 |
| 2020 | 11 | 13 |
| 2021 | 4 | 3 |
| 2022 | 8 | 7 |
| 2023 | 8 | 7 |
| 2024 | 5 | 4 |
| 2025 | 6 | 6 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Light guide optical device506US 7,457,040 B2Lumus Ltd. · 2008
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- High resolution subtractive color projection system309US 5,594,563 AHoneywell Inc. · 1997
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