G06V 40/1324
By using geometrical optics
Official title: {by using geometrical optics, e.g. using prisms (G06V40/1312 takes precedence)}
G06V40/1324 (By using geometrical optics) appears on 650 US grants and 666 published applications in this corpus.
Search patents in G06V- Granted patents
- 650
- Published applications
- 666
- Assignees
- 259
- Inventors
- 1,189
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 9 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 13 | 0 |
| 2001 | 12 | 2 |
| 2002 | 8 | 6 |
| 2003 | 3 | 16 |
| 2004 | 2 | 18 |
| 2005 | 12 | 15 |
| 2006 | 10 | 24 |
| 2007 | 14 | 19 |
| 2008 | 14 | 21 |
| 2009 | 11 | 11 |
| 2010 | 15 | 18 |
| 2011 | 13 | 16 |
| 2012 | 20 | 21 |
| 2013 | 15 | 14 |
| 2014 | 16 | 15 |
| 2015 | 14 | 19 |
| 2016 | 22 | 22 |
| 2017 | 24 | 45 |
| 2018 | 30 | 45 |
| 2019 | 52 | 59 |
| 2020 | 46 | 73 |
| 2021 | 56 | 66 |
| 2022 | 60 | 54 |
| 2023 | 49 | 32 |
| 2024 | 27 | 20 |
| 2025 | 19 | 10 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Topographical object detection system206US 5,986,746 AImedge Technology, Inc. · 1999
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- Enhancement methods and devices for reading a fingerprint image193US 5,942,761 A1999
- Smart card with fingerprint image pass-through190US 6,182,892 B2Compaq Computer Corporation · 2001
- Authentication method and system186US 7,995,196 B1Tracer Detection Technology Corp. · 2011