F21V 29/83
The elements having apertures, ducts or channels
Official title: the elements having apertures, ducts or channels, e.g. heat radiation holes
F21V29/83 (The elements having apertures, ducts or channels) appears on 2,084 US grants and 2,402 published applications in this corpus.
Search patents in F21V- Granted patents
- 2,084
- Published applications
- 2,402
- Assignees
- 965
- Inventors
- 3,545
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 10 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 11 | 0 |
| 1993 | 5 | 0 |
| 1994 | 10 | 0 |
| 1995 | 11 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 18 | 0 |
| 1999 | 8 | 0 |
| 2000 | 18 | 0 |
| 2001 | 10 | 4 |
| 2002 | 23 | 21 |
| 2003 | 23 | 18 |
| 2004 | 14 | 26 |
| 2005 | 20 | 47 |
| 2006 | 28 | 45 |
| 2007 | 37 | 44 |
| 2008 | 28 | 79 |
| 2009 | 46 | 118 |
| 2010 | 78 | 171 |
| 2011 | 104 | 182 |
| 2012 | 100 | 193 |
| 2013 | 134 | 204 |
| 2014 | 132 | 169 |
| 2015 | 142 | 145 |
| 2016 | 127 | 145 |
| 2017 | 126 | 148 |
| 2018 | 122 | 140 |
| 2019 | 161 | 123 |
| 2020 | 152 | 129 |
| 2021 | 95 | 64 |
| 2022 | 42 | 42 |
| 2023 | 59 | 52 |
| 2024 | 50 | 39 |
| 2025 | 40 | 24 |
| 2026 | 23 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- LED lamp and misuse warning module thereof29 Sep 2026US 12,747,836 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Cylindrical light fixture29 Sep 2026US 12,747,855 B1
- LED lamp29 Sep 2026US 12,747,856 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Illuminating device, imaging device and method for operating same22 Sep 2026US 12,744,988 B2KARL STORZ GmbH&Co.KG
- Light adjustment device, photography light, and photography system18 Aug 2026US 12,710,170 B2Shenzhen Leqi Innovation Co., Ltd.
- 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
- Integrated ceiling device with mechanical arrangement for a light source1 Oct 2026US 2026/0298440 A1Lighting Defense Group, LLC
- Outdoor light fixture including a venting refractor17 Sep 2026US 2026/0276188 A1Signify Holding B. V.
- Streetlights with improved thermal efficiency and extended lifespan17 Sep 2026US 2026/0276189 A1Top System Co., Ltd.
Most cited
By later US patents
- LED beacon light704US 5,806,965 AR & M Deese Inc. · 1998
- Vehicular lamp502US 4,733,335 AKoito Manufacturing Co., Ltd. · 1988
- LED lamp with reflector and multicolor adjuster484US 6,149,283 ARensselaer Polytechnic Institute (RPI) · 2000
- LED lamp assembly with means to conduct heat away from the LEDS470US 6,045,240 ARelume Corporation · 2000
- Led lamp424US 6,220,722 B1U. S. Philips Corporation · 2001