F21V 29/85
Protecting lighting devices from thermal damage: characterised by the material
Official title: characterised by the material (liquid coolants F21V29/56)
F21V29/85 (Protecting lighting devices from thermal damage: characterised by the material) appears on 1,628 US grants and 2,108 published applications in this corpus.
Search patents in F21V- Granted patents
- 1,628
- Published applications
- 2,108
- Assignees
- 833
- Inventors
- 3,335
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 2 |
| 2002 | 16 | 16 |
| 2003 | 14 | 14 |
| 2004 | 11 | 27 |
| 2005 | 14 | 30 |
| 2006 | 25 | 48 |
| 2007 | 28 | 59 |
| 2008 | 23 | 66 |
| 2009 | 40 | 117 |
| 2010 | 73 | 155 |
| 2011 | 82 | 144 |
| 2012 | 88 | 194 |
| 2013 | 122 | 205 |
| 2014 | 121 | 161 |
| 2015 | 104 | 107 |
| 2016 | 117 | 124 |
| 2017 | 108 | 154 |
| 2018 | 119 | 139 |
| 2019 | 131 | 87 |
| 2020 | 94 | 84 |
| 2021 | 77 | 51 |
| 2022 | 50 | 38 |
| 2023 | 37 | 25 |
| 2024 | 34 | 28 |
| 2025 | 23 | 22 |
| 2026 | 14 | 11 |
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
- Heat sink for electronic component and associated manufacturing method22 Sep 2026US 12,742,541 B2Valeo Vision
- Refrigerator having panel assembly covering opening of outer plate of door1 Sep 2026US 12,721,454 B2LG Electronics Inc.
- Lighting apparatus21 Jul 2026US 12,685,609 B2Ronin Surgical Corp.
- LED tube lamp26 May 2026US 12,638,141 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Lighting assembly13 Aug 2026US 2026/0235280 A1Dukesea Pty. Limited
- Optical system with heatproof effect module and stage light fixture with same30 Jul 2026US 2026/0218893 A1Guangzhou Haoyang Electronic Co., Ltd.
- Sustainable led drivers with improved thermal performance30 Jul 2026US 2026/0218894 A1Signify Holding B. V.
- Fireproof lighting structure with message sending capability16 Jul 2026US 2026/0202050 A1Ledvance GmbH
- Refrigerator having panel assembly covering opening of outer plate of door2 Jul 2026US 2026/0182755 A1LG Electronics Inc.
Most cited
By later US patents
- LED vehicle lamp assembly654US 5,632,551 AGrote Industries, Inc. · 1997
- Indicators and illuminators using a semiconductor radiation emitter package518US 6,441,943 B1Gentex Corporation · 2002
- Thermal management system for L.E.D. arrays482US 5,857,767 ARelume Corporation · 1999
- LED lamp assembly with means to conduct heat away from the LEDS470US 6,045,240 ARelume Corporation · 2000
- Arrays of optoelectronic devices and method of making same426US 5,660,461 AQuantum Devices, Inc. · 1997