F21S 41/20
Illuminating devices specially adapted for vehicle exteriors: characterised by refractors, transparent cover
Official title: characterised by refractors, transparent cover plates, light guides or filters
F21S41/20 (Illuminating devices specially adapted for vehicle exteriors: characterised by refractors, transparent cover) appears on 3,834 US grants and 4,032 published applications in this corpus.
Search patents in F21S- Granted patents
- 3,834
- Published applications
- 4,032
- Assignees
- 608
- Inventors
- 4,692
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 10 | 0 |
| 1987 | 14 | 0 |
| 1988 | 5 | 0 |
| 1989 | 13 | 0 |
| 1990 | 16 | 0 |
| 1991 | 12 | 0 |
| 1992 | 21 | 0 |
| 1993 | 14 | 0 |
| 1994 | 17 | 0 |
| 1995 | 18 | 0 |
| 1996 | 18 | 0 |
| 1997 | 23 | 0 |
| 1998 | 13 | 0 |
| 1999 | 29 | 0 |
| 2000 | 37 | 0 |
| 2001 | 22 | 19 |
| 2002 | 34 | 35 |
| 2003 | 33 | 27 |
| 2004 | 23 | 43 |
| 2005 | 21 | 55 |
| 2006 | 44 | 70 |
| 2007 | 52 | 68 |
| 2008 | 48 | 57 |
| 2009 | 45 | 60 |
| 2010 | 48 | 57 |
| 2011 | 39 | 81 |
| 2012 | 31 | 80 |
| 2013 | 71 | 116 |
| 2014 | 95 | 155 |
| 2015 | 104 | 223 |
| 2016 | 142 | 224 |
| 2017 | 182 | 299 |
| 2018 | 274 | 344 |
| 2019 | 404 | 359 |
| 2020 | 369 | 254 |
| 2021 | 269 | 238 |
| 2022 | 256 | 282 |
| 2023 | 247 | 230 |
| 2024 | 258 | 277 |
| 2025 | 276 | 218 |
| 2026 | 134 | 161 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lighting system6 Oct 2026US 12,753,892 B2ZKW Group GmbH
- Vehicle lamp fitting6 Oct 2026US 12,753,893 B2Stanley Electric Co., Ltd.
- Vehicle projection lens6 Oct 2026US 12,753,894 B2Young Optics Inc.
- Headlamp assembly6 Oct 2026US 12,753,895 B1Delta Electronics, Inc.
- Vehicle lamp6 Oct 2026US 12,753,896 B2SL Corporation
- Component for a lighting device for a motor vehicle, connection arrangement, and method for disconnecting a connection arrangement8 Oct 2026US 2026/0309294 A1Hella GmbH & Co. KGaA
- Anti-fogging agent, method for preventing fogging of vehicle lamp structure, and vehicle lamp structure1 Oct 2026US 2026/0297339 A1Resonac Corporation
- Light module for a vehicle lighting device1 Oct 2026US 2026/0298431 A1Valeo Vision
- Car light1 Oct 2026US 2026/0298432 A1Superlee Corporation
- Headlamp assembly, full-width headlamp and vehicle24 Sep 2026US 2026/0287136 A1Zhejiang Geely Holding Group Co., Ltd.
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
- Glare sensor for a vehicle614US 5,426,294 AKoito Manufacturing Co., Ltd. · 1995
- Adaptive and interactive scene illumination497US 7,227,611 B2The Boeing Company · 2007
- Illuminating device487US 5,136,483 A1992