G01J 3/021
Using plane or convex mirrors, parallel phase plates, or particular reflectors
Official title: {using plane or convex mirrors, parallel phase plates, or particular reflectors}
G01J3/021 (Using plane or convex mirrors, parallel phase plates, or particular reflectors) appears on 1,114 US grants and 1,237 published applications in this corpus.
Search patents in G01J- Granted patents
- 1,114
- Published applications
- 1,237
- Assignees
- 699
- Inventors
- 2,495
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 5 |
| 2002 | 7 | 4 |
| 2003 | 7 | 14 |
| 2004 | 9 | 17 |
| 2005 | 14 | 30 |
| 2006 | 19 | 42 |
| 2007 | 30 | 37 |
| 2008 | 40 | 44 |
| 2009 | 37 | 42 |
| 2010 | 27 | 58 |
| 2011 | 38 | 36 |
| 2012 | 38 | 39 |
| 2013 | 40 | 56 |
| 2014 | 44 | 40 |
| 2015 | 41 | 45 |
| 2016 | 41 | 50 |
| 2017 | 49 | 48 |
| 2018 | 62 | 69 |
| 2019 | 70 | 92 |
| 2020 | 65 | 95 |
| 2021 | 92 | 82 |
| 2022 | 62 | 80 |
| 2023 | 68 | 63 |
| 2024 | 70 | 59 |
| 2025 | 54 | 54 |
| 2026 | 37 | 36 |
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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- Fluorescence imaging system177US 4,786,813 AHighTech Network SCI AB · 1988
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- Measurements of substances using two different propagation modes of light through a common optical path174US 6,903,820 B2Tomophase Corporation · 2005