F21V 29/00
Protecting lighting devices from thermal damage
Official title: Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems (lighting fixtures combined with outlets for air-treatment systems F24F13/078)
F21V29/00 (Protecting lighting devices from thermal damage) appears on 9,627 US grants and 11,328 published applications in this corpus.
Search patents in F21V- Granted patents
- 9,627
- Published applications
- 11,328
- Assignees
- 3,051
- Inventors
- 13,752
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 10 | 0 |
| 1978 | 8 | 0 |
| 1979 | 9 | 0 |
| 1980 | 10 | 0 |
| 1981 | 9 | 0 |
| 1982 | 10 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 14 | 0 |
| 1987 | 16 | 0 |
| 1988 | 19 | 0 |
| 1989 | 21 | 0 |
| 1990 | 18 | 0 |
| 1991 | 25 | 0 |
| 1992 | 29 | 0 |
| 1993 | 19 | 0 |
| 1994 | 24 | 0 |
| 1995 | 25 | 0 |
| 1996 | 25 | 0 |
| 1997 | 28 | 0 |
| 1998 | 45 | 0 |
| 1999 | 40 | 0 |
| 2000 | 42 | 0 |
| 2001 | 37 | 21 |
| 2002 | 71 | 79 |
| 2003 | 82 | 83 |
| 2004 | 66 | 123 |
| 2005 | 82 | 198 |
| 2006 | 110 | 224 |
| 2007 | 161 | 253 |
| 2008 | 135 | 342 |
| 2009 | 184 | 538 |
| 2010 | 313 | 637 |
| 2011 | 376 | 700 |
| 2012 | 439 | 831 |
| 2013 | 580 | 907 |
| 2014 | 617 | 837 |
| 2015 | 610 | 740 |
| 2016 | 647 | 703 |
| 2017 | 652 | 697 |
| 2018 | 636 | 663 |
| 2019 | 789 | 606 |
| 2020 | 643 | 565 |
| 2021 | 527 | 409 |
| 2022 | 400 | 329 |
| 2023 | 316 | 265 |
| 2024 | 308 | 254 |
| 2025 | 229 | 171 |
| 2026 | 132 | 153 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Luminaire with replaceable LED board6 Oct 2026US 12,753,907 B2Halco Lighting Technologies, LLC
- Ensemble light source6 Oct 2026US 12,756,150 B1KYOCERA SLD Laser, Inc.
- LED lamp and misuse warning module thereof29 Sep 2026US 12,747,836 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Shoe box lamp29 Sep 2026US 12,747,851 B2Torshare Ltd.
- Recessed light fixture with LED module removably mounted therein29 Sep 2026US 12,747,853 B2Usai, LLC
- Operating lamp8 Oct 2026US 2026/0309312 A1FARO Fabbrica Apparecchiature Razionali Odontoiatriche S.p.A.
- Luminaire having a back plate with opening for relasably attached driver8 Oct 2026US 2026/0309318 A1Signify Holding B. V.
- Composite printed circuit board apparatus8 Oct 2026US 2026/0309319 A1Whelen Engineering Company, Inc.
- Led device and led light fixture8 Oct 2026US 2026/0309321 A1Shanghai Weili Advanced Electronic Technology Co., Ltd.
- Solid State Lamp Using Light Emitting Strips1 Oct 2026US 2026/0298419 A1Quarkstar LLC
Most cited
By later US patents
- LED beacon light704US 5,806,965 AR & M Deese Inc. · 1998
- LED vehicle lamp assembly654US 5,632,551 AGrote Industries, Inc. · 1997
- Lighting methods and systems641US 7,178,941 B2Color Kinetics Incorporated · 2007
- Indicators and illuminators using a semiconductor radiation emitter package518US 6,441,943 B1Gentex Corporation · 2002
- Vehicular lamp502US 4,733,335 AKoito Manufacturing Co., Ltd. · 1988