F21V 7/16
With provision for adjusting the curvature
Official title: with provision for adjusting the curvature
F21V7/16 (With provision for adjusting the curvature) appears on 89 US grants and 58 published applications in this corpus.
Search patents in F21V- Granted patents
- 89
- Published applications
- 58
- Assignees
- 61
- Inventors
- 152
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 3 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 2 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 2 |
| 2011 | 1 | 3 |
| 2012 | 0 | 1 |
| 2013 | 2 | 6 |
| 2014 | 2 | 2 |
| 2015 | 5 | 7 |
| 2016 | 2 | 5 |
| 2017 | 2 | 4 |
| 2018 | 4 | 4 |
| 2019 | 6 | 4 |
| 2020 | 8 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lighting device5 May 2026US 12,618,545 B1ASUSTeK COMPUTER INC.
- Reflector, supporting structure for reflector and lighting device7 Jan 2025US 12,188,654 B2
- Illumination apparatus10 Sep 2024US 12,085,270 B2Japan Display Inc.
- Reflector unit23 Jul 2024US 12,044,379 B2ZKW Group GmbH
- LED decorative lamp24 Aug 2021US 11,098,876 B2
- Light adjustment device and illumination device3 Jul 2025US 2025/0216056 A1Luxshare Precision Industry Co., Ltd.
- Illumination apparatus4 Apr 2024US 2024/0110687 A1Japan Display Inc.
- Reflector, supporting structure for reflector and lighting device6 Apr 2023US 2023/0107653 A1
- Reflector Unit24 Feb 2022US 2022/0057066 A1ZKW Group GmbH
- LED Decorative Lamp27 May 2021US 2021/0156541 A1
Most cited
By later US patents
- Adjustable optical reflector for fluorescent fixture175US 4,669,033 ASpecuflex, Inc. · 1987
- LED retrofit method and kit for converting fluorescent luminaries154US 6,739,734 B1Ultimate Presentation Sytems, Inc. · 2004
- Variable beamwidth stage light124US 4,855,884 AMorpheus Lights, Inc. · 1989
- Lamp reflector with adjustable curvature108US 6,053,624 A2000
- Faceted parabolic-type reflector system101US 4,028,542 AEsquire, Inc. · 1977