F21V 7/09
With a combination of different curvatures
Official title: with a combination of different curvatures
F21V7/09 (With a combination of different curvatures) appears on 722 US grants and 533 published applications in this corpus.
Search patents in F21V- Granted patents
- 722
- Published applications
- 533
- Assignees
- 406
- Inventors
- 1,220
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 8 | 0 |
| 1984 | 6 | 0 |
| 1985 | 11 | 0 |
| 1986 | 4 | 0 |
| 1987 | 14 | 0 |
| 1988 | 16 | 0 |
| 1989 | 6 | 0 |
| 1990 | 11 | 0 |
| 1991 | 11 | 0 |
| 1992 | 3 | 0 |
| 1993 | 10 | 0 |
| 1994 | 12 | 0 |
| 1995 | 17 | 0 |
| 1996 | 12 | 0 |
| 1997 | 11 | 0 |
| 1998 | 10 | 0 |
| 1999 | 14 | 0 |
| 2000 | 22 | 0 |
| 2001 | 21 | 8 |
| 2002 | 22 | 19 |
| 2003 | 24 | 16 |
| 2004 | 13 | 12 |
| 2005 | 14 | 25 |
| 2006 | 14 | 23 |
| 2007 | 22 | 21 |
| 2008 | 13 | 35 |
| 2009 | 27 | 31 |
| 2010 | 19 | 46 |
| 2011 | 17 | 25 |
| 2012 | 27 | 37 |
| 2013 | 22 | 38 |
| 2014 | 38 | 25 |
| 2015 | 25 | 34 |
| 2016 | 27 | 21 |
| 2017 | 24 | 15 |
| 2018 | 16 | 20 |
| 2019 | 26 | 18 |
| 2020 | 20 | 10 |
| 2021 | 12 | 14 |
| 2022 | 13 | 7 |
| 2023 | 10 | 12 |
| 2024 | 14 | 8 |
| 2025 | 6 | 10 |
| 2026 | 10 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Non-imaging asymmetric wall wash fixture for downlights11 Aug 2026US 12,704,239 B2LMPG Inc.
- Illumination device and inspection device14 Jul 2026US 12,684,249 B2Nichia Corporation
- Light-emitting device including light-transmissive member disposed above wavelength conversion member via air layer30 Jun 2026US 12,669,233 B2Nichia Corporation
- Luminaire with hollow optical systems30 Jun 2026US 12,669,234 B2Quarkstar LLC
- Cabin illumination device2 Jun 2026US 12,644,577 B2Panasonic Automotive Systems Co., Ltd.
- Reflector cup and luminaire8 Oct 2026US 2026/0309309 A1Signify Holding B. V.
- Tilt-adapting lighting system28 May 2026US 2026/0146726 A1Federal Signal Corporation
- LED Light Source With High Luminous Intensity9 Apr 2026US 2026/0098626 A1Manlux Technologies, Inc.
- Non-imaging asymmetric wall wash fixture for downlights2 Oct 2025US 2025/0305656 A1LMPG Inc.
- Cabin illumination device2 Oct 2025US 2025/0305658 A1Panasonic Automotive Systems Co., Ltd.
Most cited
By later US patents
- LED lamp with reflector and multicolor adjuster484US 6,149,283 ARensselaer Polytechnic Institute (RPI) · 2000
- Marker apparatus232US 5,580,156 AKoito Manufacturing Co., Ltd. · 1996
- LED-based lamps223US 8,197,105 B2Intematix Corporation · 2012
- Thermally protected recessed lighting fixture195US 4,754,377 AThomas Industries, Inc. · 1988
- Fluorescent light reflector182US 6,257,735 B1Smartlite, Inc. · 2001