F21V 29/15
Thermal insulation
F21V29/15 (Thermal insulation) appears on 403 US grants and 339 published applications in this corpus.
Search patents in F21V- Granted patents
- 403
- Published applications
- 339
- Assignees
- 240
- Inventors
- 776
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 5 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 8 | 0 |
| 1997 | 2 | 0 |
| 1998 | 13 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 3 |
| 2002 | 14 | 12 |
| 2003 | 15 | 6 |
| 2004 | 8 | 12 |
| 2005 | 9 | 8 |
| 2006 | 6 | 9 |
| 2007 | 11 | 22 |
| 2008 | 9 | 17 |
| 2009 | 13 | 5 |
| 2010 | 11 | 15 |
| 2011 | 7 | 15 |
| 2012 | 12 | 19 |
| 2013 | 15 | 27 |
| 2014 | 21 | 28 |
| 2015 | 22 | 31 |
| 2016 | 21 | 24 |
| 2017 | 24 | 14 |
| 2018 | 13 | 14 |
| 2019 | 19 | 17 |
| 2020 | 17 | 13 |
| 2021 | 15 | 11 |
| 2022 | 6 | 3 |
| 2023 | 3 | 2 |
| 2024 | 6 | 3 |
| 2025 | 1 | 5 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Light adjustment device, photography light, and photography system18 Aug 2026US 12,710,170 B2Shenzhen Leqi Innovation Co., Ltd.
- Method of hyperspectral imaging using lamp with double-walled housing18 Aug 2026US 12,710,374 B2Parata Systems, LLC
- Light emitting diode (LED) luminaire systems30 Jun 2026US 12,669,240 B2
- Lamp for photography and video28 Apr 2026US 12,613,393 B2Godox Photo Equipment Co., Ltd.
- Reduction of temperature from high power LED in a medical sensor24 Feb 2026US 12,560,318 B2Covidien LP
- Fireproof lighting structure with message sending capability16 Jul 2026US 2026/0202050 A1Ledvance GmbH
- Reduction of temperature from high power led in a medical sensor2 Jul 2026US 2026/0185689 A1Covidien LP
- Light emitting diode (led) luminaire systems8 Jan 2026US 2026/0009530 A1
- Power electronic system with thermally segregated areas8 Jan 2026US 2026/0013070 A1
- Light adjustment device, photography light, and photography system6 Nov 2025US 2025/0341304 A1Shenzhen Leqi Innovation Co., Ltd.
Most cited
By later US patents
- Modular lighting fixture225US 5,738,436 AM.G. Products, Inc. · 1998
- Fully rotatable recessed light fixture with movable stop and adjustable length bar hanger219US 6,082,878 ACooper Industries, Inc. · 2000
- Thermally protected recessed lighting fixture195US 4,754,377 AThomas Industries, Inc. · 1988
- Directly viewable luminaire187US 7,267,461 B2TIR Systems Ltd. · 2007
- Recessed wall wash light fixture185US 6,632,006 B1Genlyte Thomas Group LLC · 2003