F21S 41/24
Light guides
F21S41/24 (Light guides) appears on 1,045 US grants and 1,127 published applications in this corpus.
Search patents in F21S- Granted patents
- 1,045
- Published applications
- 1,127
- Assignees
- 243
- Inventors
- 1,623
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 6 |
| 2002 | 10 | 4 |
| 2003 | 7 | 9 |
| 2004 | 5 | 11 |
| 2005 | 5 | 18 |
| 2006 | 12 | 16 |
| 2007 | 14 | 16 |
| 2008 | 16 | 20 |
| 2009 | 11 | 23 |
| 2010 | 17 | 10 |
| 2011 | 14 | 20 |
| 2012 | 4 | 20 |
| 2013 | 12 | 33 |
| 2014 | 31 | 61 |
| 2015 | 28 | 57 |
| 2016 | 40 | 66 |
| 2017 | 60 | 77 |
| 2018 | 87 | 96 |
| 2019 | 94 | 88 |
| 2020 | 111 | 91 |
| 2021 | 76 | 71 |
| 2022 | 73 | 75 |
| 2023 | 67 | 66 |
| 2024 | 78 | 74 |
| 2025 | 73 | 60 |
| 2026 | 39 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Headlamp assembly, full-width headlamp and vehicle24 Sep 2026US 2026/0287136 A1Zhejiang Geely Holding Group Co., Ltd.
- Light guide component, lighting or signal indication device and motor vehcile17 Sep 2026US 2026/0276163 A1Valeo Vision
- Vehicle lamp17 Sep 2026US 2026/0276169 A1Nichia Corporation
- Lighting device for a motor vehicle27 Aug 2026US 2026/0251277 A1Hella GmbH & Co. KGaA
- Lighting module20 Aug 2026US 2026/0243402 A1Valeo Vision
Most cited
By later US patents
- Glare sensor for a vehicle614US 5,426,294 AKoito Manufacturing Co., Ltd. · 1995
- Illuminating device487US 5,136,483 A1992
- Collimating lamp244US 6,527,411 B1Visteon Corporation · 2003
- Optical manifold for light-emitting diodes187US 7,286,296 B2Light Prescriptions Innovators, LLC · 2007
- Head lamp assembly and accent lighting therefor159US 8,066,416 B2Federal-Mogul Ignition Company · 2011