F21S 43/315
Using total internal reflection
Official title: {using total internal reflection}
F21S43/315 (Using total internal reflection) appears on 285 US grants and 300 published applications in this corpus.
Search patents in F21S- Granted patents
- 285
- Published applications
- 300
- Assignees
- 131
- Inventors
- 582
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 1 |
| 2003 | 4 | 1 |
| 2004 | 4 | 6 |
| 2005 | 4 | 11 |
| 2006 | 4 | 4 |
| 2007 | 5 | 4 |
| 2008 | 4 | 5 |
| 2009 | 4 | 2 |
| 2010 | 4 | 4 |
| 2011 | 0 | 4 |
| 2012 | 2 | 9 |
| 2013 | 6 | 3 |
| 2014 | 8 | 21 |
| 2015 | 8 | 14 |
| 2016 | 15 | 18 |
| 2017 | 9 | 17 |
| 2018 | 23 | 19 |
| 2019 | 29 | 30 |
| 2020 | 28 | 8 |
| 2021 | 14 | 13 |
| 2022 | 23 | 27 |
| 2023 | 24 | 23 |
| 2024 | 21 | 14 |
| 2025 | 16 | 19 |
| 2026 | 15 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vehicle lighting device and vehicle lamp1 Sep 2026US 12,723,731 B2Toshiba Lighting & Technology Corporation
- Accessory optical path translator25 Aug 2026US 12,715,358 B2Emergency Technology, Inc.
- Vehicle lighting apparatus25 Aug 2026US 12,716,564 B2Hyundai Mobis Co., Ltd.
- Vehicle lamp16 Jun 2026US 12,655,954 B2Stanley Electric Co., Ltd.
- Vehicle lamp assembly with a plurality of frustum reflectors16 Jun 2026US 12,655,958 B1Ford Global Technologies, LLC
- Arrangement of optical components for a lighting device for a motor vehicle and a lighting device for the tail section of a motor vehicle1 Oct 2026US 2026/0298435 A1Hella GmbH & Co. KGaA
- Optical element and warning light6 Aug 2026US 2026/0227047 A1Juluen Enterprice Co., Ltd.
- Lighting device for a motor vehicle30 Jul 2026US 2026/0218874 A1Hella GmbH & Co. KGaA
- Lighting apparatus for vehicles23 Jul 2026US 2026/0210519 A1Hella GmbH & Co. KGaA
- Light module for a motor vehicle16 Jul 2026US 2026/0202028 A1Hella GmbH & Co. KGaA
Most cited
By later US patents
- Collimating lamp244US 6,527,411 B1Visteon Corporation · 2003
- Bireflective lens element169US 6,097,549 ABreault Research Organization, Inc. · 2000
- Rear combination lamp assembly for vehicles154US 4,868,719 AStanley Electric Co., Ltd. · 1989
- Optical attachment for a light-emitting diode and brake light for a motor vehicle124US 6,536,923 B1Sidler GmbH & Co. · 2003
- Vehicle lamp having prismatic element120US 6,948,838 B2Fer Fahrzeugelektrik GmbH · 2005