F21S 41/143
The main emission direction of the led being parallel to the optical
Official title: the main emission direction of the LED being parallel to the optical axis of the illuminating device
F21S41/143 (The main emission direction of the led being parallel to the optical) appears on 1,496 US grants and 1,724 published applications in this corpus.
Search patents in F21S- Granted patents
- 1,496
- Published applications
- 1,724
- Assignees
- 321
- Inventors
- 2,103
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 4 |
| 2003 | 5 | 6 |
| 2004 | 4 | 27 |
| 2005 | 7 | 31 |
| 2006 | 23 | 31 |
| 2007 | 30 | 29 |
| 2008 | 20 | 32 |
| 2009 | 25 | 44 |
| 2010 | 37 | 30 |
| 2011 | 22 | 32 |
| 2012 | 22 | 41 |
| 2013 | 35 | 62 |
| 2014 | 50 | 71 |
| 2015 | 44 | 80 |
| 2016 | 61 | 85 |
| 2017 | 72 | 87 |
| 2018 | 86 | 118 |
| 2019 | 142 | 148 |
| 2020 | 147 | 107 |
| 2021 | 113 | 105 |
| 2022 | 123 | 120 |
| 2023 | 107 | 102 |
| 2024 | 126 | 153 |
| 2025 | 128 | 103 |
| 2026 | 60 | 75 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
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- Vehicle headlight17 Sep 2026US 2026/0276164 A1Ichikoh Industries, Ltd.
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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
- Method of replacing a conventional vehicle light bulb with a light-emitting diode array291US 6,276,822 B12001
- Collimating lamp244US 6,527,411 B1Visteon Corporation · 2003
- Optical manifold for light-emitting diodes187US 7,286,296 B2Light Prescriptions Innovators, LLC · 2007