F21S 41/635
By moving refractors, filters or transparent cover plates
Official title: {by moving refractors, filters or transparent cover plates}
F21S41/635 (By moving refractors, filters or transparent cover plates) appears on 246 US grants and 242 published applications in this corpus.
Search patents in F21S- Granted patents
- 246
- Published applications
- 242
- Assignees
- 96
- Inventors
- 477
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 3 |
| 2003 | 3 | 5 |
| 2004 | 4 | 3 |
| 2005 | 1 | 0 |
| 2006 | 1 | 3 |
| 2007 | 2 | 4 |
| 2008 | 2 | 4 |
| 2009 | 3 | 3 |
| 2010 | 2 | 3 |
| 2011 | 4 | 1 |
| 2012 | 2 | 6 |
| 2013 | 1 | 7 |
| 2014 | 7 | 13 |
| 2015 | 5 | 19 |
| 2016 | 17 | 15 |
| 2017 | 15 | 22 |
| 2018 | 20 | 21 |
| 2019 | 21 | 21 |
| 2020 | 27 | 16 |
| 2021 | 17 | 11 |
| 2022 | 13 | 19 |
| 2023 | 15 | 12 |
| 2024 | 22 | 18 |
| 2025 | 8 | 9 |
| 2026 | 9 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Adaptive light for a watercraft16 Jun 2026US 12,655,969 B2Polaris Industries Inc.
- Vehicle lamp and method of controlling vehicle lamp configured to switch between a normal light distribution and road surface drawing2 Jun 2026US 12,644,572 B2Koito Manufacturing Co., Ltd.
- Adaptive light for a watercraft24 Sep 2026US 2026/0287162 A1Polaris Industries Inc.
- Vehicle lamp fitting6 Aug 2026US 2026/0227043 A1Stanley Electric Co., Ltd.
- Vehicle lamp14 May 2026US 2026/0132902 A1Hyundai Mobis Co., Ltd.
- Lighting device for a motor vehicle, in particular a high-definition headlamp18 Dec 2025US 2025/0383060 A1
- Vehicle headlamp assembly18 Sep 2025US 2025/0290615 A1
Most cited
By later US patents
- Adaptive and interactive scene illumination497US 7,227,611 B2The Boeing Company · 2007
- Headlight arrangement for vehicles331US 4,768,135 ARobert Bosch GmbH · 1988
- Variable light distribution type automobile lamp58US 5,068,768 AKoito Manufacturing Co., Ltd. · 1991
- Forward illumination lighting system for vehicles54US 4,868,718 AGeneral Electric Company · 1989
- Distributed lighting system with fiber optic controls51US 5,311,410 AHughes Aircraft Company · 1994