F21V 5/02
Refractors for light sources: of prismatic shape
Official title: of prismatic shape (F21V5/04 takes precedence)
F21V5/02 (Refractors for light sources: of prismatic shape) appears on 753 US grants and 639 published applications in this corpus.
Search patents in F21V- Granted patents
- 753
- Published applications
- 639
- Assignees
- 401
- Inventors
- 1,334
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 12 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 13 | 0 |
| 1996 | 11 | 0 |
| 1997 | 17 | 0 |
| 1998 | 14 | 0 |
| 1999 | 12 | 0 |
| 2000 | 24 | 0 |
| 2001 | 14 | 10 |
| 2002 | 16 | 15 |
| 2003 | 22 | 12 |
| 2004 | 13 | 18 |
| 2005 | 11 | 13 |
| 2006 | 12 | 20 |
| 2007 | 15 | 22 |
| 2008 | 11 | 17 |
| 2009 | 19 | 23 |
| 2010 | 13 | 24 |
| 2011 | 15 | 17 |
| 2012 | 17 | 24 |
| 2013 | 19 | 41 |
| 2014 | 15 | 32 |
| 2015 | 25 | 30 |
| 2016 | 30 | 32 |
| 2017 | 27 | 36 |
| 2018 | 29 | 33 |
| 2019 | 49 | 42 |
| 2020 | 41 | 26 |
| 2021 | 43 | 38 |
| 2022 | 28 | 23 |
| 2023 | 30 | 34 |
| 2024 | 27 | 29 |
| 2025 | 23 | 17 |
| 2026 | 13 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Illuminator assembly incorporating light emitting diodes881US 5,803,579 AGentex Corporation · 1998
- Led assembly631US 6,132,072 AGentex Corporation · 2000
- Systems and components for enhancing rear vision from a vehicle419US 6,550,949 B1Gentex Corporation · 2003
- Divergent angle rotator system and method for collimating light beams317US 5,854,872 AClio Technologies, Inc. · 1998
- Lighting apparatus317US 6,582,103 B1Teledyne Lighting and Display Products, Inc. · 2003