F21V 29/71
Using a combination of separate elements interconnected by heat-conducting means
Official title: using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
F21V29/71 (Using a combination of separate elements interconnected by heat-conducting means) appears on 751 US grants and 1,040 published applications in this corpus.
Search patents in F21V- Granted patents
- 751
- Published applications
- 1,040
- Assignees
- 466
- Inventors
- 1,716
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 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 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 5 |
| 2003 | 2 | 2 |
| 2004 | 4 | 10 |
| 2005 | 4 | 15 |
| 2006 | 3 | 16 |
| 2007 | 14 | 14 |
| 2008 | 13 | 49 |
| 2009 | 13 | 83 |
| 2010 | 42 | 93 |
| 2011 | 59 | 94 |
| 2012 | 39 | 110 |
| 2013 | 51 | 92 |
| 2014 | 64 | 87 |
| 2015 | 70 | 54 |
| 2016 | 56 | 52 |
| 2017 | 40 | 36 |
| 2018 | 44 | 41 |
| 2019 | 52 | 38 |
| 2020 | 32 | 32 |
| 2021 | 38 | 24 |
| 2022 | 21 | 22 |
| 2023 | 20 | 20 |
| 2024 | 25 | 19 |
| 2025 | 17 | 17 |
| 2026 | 12 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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Most cited
By later US patents
- Thermal management methods and apparatus for lighting devices395US 7,344,279 B2Philips Solid-State Lighting Solutions, Inc. · 2008
- L.E.D. thermal management341US 6,428,189 B1Relume Corporation · 2002
- LED integrated heat sink341US 6,517,218 B2Relume Corporation · 2003
- Lighting fixture with recessed baffle trim unit251US 7,722,227 B2Cordelia Lighting, Inc. · 2010
- Peltier-cooled LED lighting assembly202US 6,964,501 B2Altman Stage Lighting Co., Inc. · 2005