F21K 9/00
Light sources using semiconductor devices as light-generating elements
Official title: Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
F21K9/00 (Light sources using semiconductor devices as light-generating elements) appears on 10,876 US grants and 13,679 published applications in this corpus.
Search patents in F21K- Granted patents
- 10,876
- Published applications
- 13,679
- Assignees
- 2,828
- Inventors
- 14,031
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 12 | 0 |
| 1999 | 11 | 0 |
| 2000 | 9 | 0 |
| 2001 | 21 | 5 |
| 2002 | 23 | 50 |
| 2003 | 39 | 58 |
| 2004 | 55 | 107 |
| 2005 | 52 | 165 |
| 2006 | 87 | 216 |
| 2007 | 111 | 257 |
| 2008 | 107 | 364 |
| 2009 | 180 | 548 |
| 2010 | 313 | 740 |
| 2011 | 394 | 856 |
| 2012 | 499 | 937 |
| 2013 | 682 | 1062 |
| 2014 | 771 | 1264 |
| 2015 | 807 | 1197 |
| 2016 | 929 | 907 |
| 2017 | 882 | 794 |
| 2018 | 842 | 843 |
| 2019 | 948 | 781 |
| 2020 | 786 | 701 |
| 2021 | 641 | 508 |
| 2022 | 480 | 379 |
| 2023 | 398 | 335 |
| 2024 | 375 | 274 |
| 2025 | 264 | 197 |
| 2026 | 117 | 134 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Emitter assembly for a lighting device6 Oct 2026US 12,753,886 B2Lutron Technology Company LLC
- LED light source comprising hollow pedestal supporting transparent optical element6 Oct 2026US 12,753,887 B2Lumileds LLC
- Lighting module, lighting device and lamp6 Oct 2026US 12,753,888 B2LG Innotek Co., Ltd.
- Luminaire with replaceable LED board6 Oct 2026US 12,753,907 B2Halco Lighting Technologies, LLC
- LED lamp and misuse warning module thereof29 Sep 2026US 12,747,836 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Lighting element with insect repelling element8 Oct 2026US 2026/0305598 A1PIC Corporation
- Lightbars with emission collecting optical modules8 Oct 2026US 2026/0309310 A1Whelen Engineering Company, Inc.
- Wireless controllable lighting device8 Oct 2026US 2026/0309313 A1Lutron Technology Company LLC
- Solid State Lamp Using Light Emitting Strips1 Oct 2026US 2026/0298419 A1Quarkstar LLC
- Led filament and light bulb using the same1 Oct 2026US 2026/0298420 A1Jiaxing Super Lighting Electric Appliance Co., Ltd
Most cited
By later US patents
- Illumination components1,698US 6,211,626 B1Color Kinetics Incorporated · 2001
- Multicolored LED lighting method and apparatus1,174US 6,016,038 AColor Kinetics Incorporated · 2000
- Lighting entertainment system987US 6,166,496 AColor Kinetics Incorporated · 2000
- Lighting device and lighting method856US 7,213,940 B1LED Lighting Fixtures, Inc. · 2007
- Multicolored LED lighting method and apparatus852US 6,150,774 AColor Kinetics Incorporated · 2000