G02B 6/29367
Zigzag path within a transparent optical block
Official title: {Zigzag path within a transparent optical block, e.g. filter deposited on an etalon, glass plate, wedge acting as a stable spacer}
G02B6/29367 (Zigzag path within a transparent optical block) appears on 250 US grants and 256 published applications in this corpus.
Search patents in G02B- Granted patents
- 250
- Published applications
- 256
- Assignees
- 151
- Inventors
- 632
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 3 |
| 2002 | 10 | 25 |
| 2003 | 13 | 20 |
| 2004 | 15 | 11 |
| 2005 | 9 | 9 |
| 2006 | 7 | 6 |
| 2007 | 8 | 2 |
| 2008 | 7 | 9 |
| 2009 | 5 | 6 |
| 2010 | 6 | 7 |
| 2011 | 6 | 5 |
| 2012 | 6 | 4 |
| 2013 | 8 | 8 |
| 2014 | 3 | 7 |
| 2015 | 6 | 7 |
| 2016 | 6 | 9 |
| 2017 | 10 | 18 |
| 2018 | 15 | 11 |
| 2019 | 13 | 12 |
| 2020 | 20 | 19 |
| 2021 | 9 | 8 |
| 2022 | 7 | 9 |
| 2023 | 8 | 12 |
| 2024 | 9 | 13 |
| 2025 | 7 | 10 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Optical multiplexing device186US 5,583,683 AOptical Corporation of America · 1996
- Optical multiplexer and demultiplexer151US 4,244,045 ANippon Telegraph & Telephone Public Corporation · 1981
- Modular all-optical cross-connect126US 6,614,953 B2Photuris, Inc. · 2003
- Optical branching device with internal waveguide120US 4,693,544 ANippon Sheet Glass Co., Ltd. · 1987
- Optical wavelength demultiplexer119US 6,198,864 B1Agilent Technologies, Inc. · 2001