G02B 6/4215
The intermediate optical elements being wavelength selective optical elements
Official title: {the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers (G02B6/4246 takes precedence)}
G02B6/4215 (The intermediate optical elements being wavelength selective optical elements) appears on 1,166 US grants and 1,275 published applications in this corpus.
Search patents in G02B- Granted patents
- 1,166
- Published applications
- 1,275
- Assignees
- 543
- Inventors
- 2,741
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 10 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 9 | 0 |
| 1996 | 4 | 0 |
| 1997 | 10 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 16 | 0 |
| 2001 | 24 | 6 |
| 2002 | 23 | 58 |
| 2003 | 32 | 82 |
| 2004 | 48 | 36 |
| 2005 | 43 | 29 |
| 2006 | 31 | 14 |
| 2007 | 22 | 18 |
| 2008 | 22 | 11 |
| 2009 | 9 | 11 |
| 2010 | 3 | 29 |
| 2011 | 9 | 21 |
| 2012 | 11 | 21 |
| 2013 | 26 | 38 |
| 2014 | 18 | 19 |
| 2015 | 33 | 51 |
| 2016 | 51 | 61 |
| 2017 | 75 | 78 |
| 2018 | 69 | 75 |
| 2019 | 69 | 85 |
| 2020 | 84 | 94 |
| 2021 | 71 | 79 |
| 2022 | 61 | 88 |
| 2023 | 61 | 74 |
| 2024 | 60 | 72 |
| 2025 | 59 | 86 |
| 2026 | 38 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
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