F21S 41/14
Characterised by the type of light source
Official title: characterised by the type of light source
F21S41/14 (Characterised by the type of light source) appears on 4,821 US grants and 5,250 published applications in this corpus.
Search patents in F21S- Granted patents
- 4,821
- Published applications
- 5,250
- Assignees
- 731
- Inventors
- 5,584
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 14 | 0 |
| 1988 | 9 | 0 |
| 1989 | 13 | 0 |
| 1990 | 15 | 0 |
| 1991 | 14 | 0 |
| 1992 | 23 | 0 |
| 1993 | 18 | 0 |
| 1994 | 9 | 0 |
| 1995 | 9 | 0 |
| 1996 | 12 | 0 |
| 1997 | 16 | 0 |
| 1998 | 14 | 0 |
| 1999 | 20 | 0 |
| 2000 | 15 | 0 |
| 2001 | 22 | 19 |
| 2002 | 35 | 39 |
| 2003 | 48 | 37 |
| 2004 | 26 | 71 |
| 2005 | 24 | 91 |
| 2006 | 67 | 95 |
| 2007 | 80 | 105 |
| 2008 | 66 | 97 |
| 2009 | 83 | 116 |
| 2010 | 96 | 122 |
| 2011 | 73 | 142 |
| 2012 | 93 | 149 |
| 2013 | 121 | 185 |
| 2014 | 157 | 218 |
| 2015 | 164 | 298 |
| 2016 | 197 | 298 |
| 2017 | 273 | 386 |
| 2018 | 355 | 425 |
| 2019 | 514 | 462 |
| 2020 | 428 | 337 |
| 2021 | 339 | 299 |
| 2022 | 318 | 335 |
| 2023 | 295 | 262 |
| 2024 | 298 | 296 |
| 2025 | 274 | 214 |
| 2026 | 145 | 152 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F21S 41/141Light emitting diodes [led]3,623
- F21S 41/16Laser light sources837
- F21S 41/176Light sources where the light is generated by photoluminescent material spaced from678
- F21S 41/17Discharge light sources371
- F21S 41/162Incandescent light sources250
- F21S 41/18Combination of light sources of different types or shapes113
Recent patents
- Headlamp assembly6 Oct 2026US 12,753,895 B1Delta Electronics, Inc.
- Vehicle lamp6 Oct 2026US 12,753,896 B2SL Corporation
- Light module and lighting device for a motor vehicle6 Oct 2026US 12,753,897 B2Hella Saturnus Slovenija d.o.o.
- Light-emitting module integrating a flexible organic light-emitting diode29 Sep 2026US 12,747,843 B2Valeo Vision
- Headlamp aiming system22 Sep 2026US 12,741,583 B2PACCAR Inc
- Method for assembling a headlamp light module under limited assembling space conditions, headlamp light module, and assembly8 Oct 2026US 2026/0309293 A1Lumileds Singapore Pte. Ltd.
- Modular cutoff shield for headlights8 Oct 2026US 2026/0309295 A1
- Snap-in lighthead assembly for lightbar8 Oct 2026US 2026/0309297 A1Whelen Engineering Company, Inc.
- Car light1 Oct 2026US 2026/0298432 A1Superlee Corporation
- Integrated lamp control modules24 Sep 2026US 2026/0287135 A1
Most cited
By later US patents
- Illuminator assembly incorporating light emitting diodes881US 5,803,579 AGentex Corporation · 1998
- Led assembly631US 6,132,072 AGentex Corporation · 2000
- Adaptive and interactive scene illumination497US 7,227,611 B2The Boeing Company · 2007
- Uniform illumination system488US 7,072,096 B2Digital Optics International Corporation · 2006
- Illuminating device487US 5,136,483 A1992