F21V 29/677
The fans being used for discharging
Official title: {the fans being used for discharging}
F21V29/677 (The fans being used for discharging) appears on 346 US grants and 445 published applications in this corpus.
Search patents in F21V- Granted patents
- 346
- Published applications
- 445
- Assignees
- 234
- Inventors
- 745
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 4 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 10 |
| 2005 | 4 | 12 |
| 2006 | 9 | 14 |
| 2007 | 4 | 17 |
| 2008 | 13 | 19 |
| 2009 | 7 | 28 |
| 2010 | 12 | 60 |
| 2011 | 16 | 51 |
| 2012 | 28 | 28 |
| 2013 | 31 | 34 |
| 2014 | 27 | 18 |
| 2015 | 29 | 24 |
| 2016 | 15 | 11 |
| 2017 | 13 | 14 |
| 2018 | 17 | 24 |
| 2019 | 23 | 18 |
| 2020 | 18 | 15 |
| 2021 | 18 | 12 |
| 2022 | 8 | 4 |
| 2023 | 9 | 7 |
| 2024 | 6 | 10 |
| 2025 | 10 | 4 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Led lamp424US 6,220,722 B1U. S. Philips Corporation · 2001
- Thermal management methods and apparatus for lighting devices395US 7,344,279 B2Philips Solid-State Lighting Solutions, Inc. · 2008
- Computer controlled lighting system having automatically variable position, color, intensity and beam divergence386US 4,392,187 AVari-Lite, Inc. · 1983
- LED-based fixtures and related methods for thermal management313US 7,828,465 B2Koninlijke Philips Electronis N.V. · 2010
- LED light299US 7,524,089 B2Daejin DMP Co., Ltd. · 2009