F21S 45/46
Using liquid
Official title: using liquid
F21S45/46 (Using liquid) appears on 24 US grants and 35 published applications in this corpus.
Search patents in F21S- Granted patents
- 24
- Published applications
- 35
- Assignees
- 25
- Inventors
- 87
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 3 | 3 |
| 2011 | 2 | 2 |
| 2012 | 1 | 5 |
| 2013 | 1 | 1 |
| 2014 | 5 | 4 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 4 |
| 2019 | 2 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 2 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 3 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cooling system for a vehicle lighting module2 Sep 2025US 12,404,985 B2Valeo Vision
- Forward cooling headlight13 May 2025US 12,297,976 B2Matrix Railway Corporation
- Forward cooling headlight2 Jul 2024US 12,025,288 B2Matrix Railway Corporation
- Lamp device for vehicle24 May 2022US 11,339,946 B2Hyundai Motor Company
- Headlight for a vehicle with a cooling device for a semiconductor illuminant8 Mar 2022US 11,268,674 B2Hella GmbH & Co. KGaA
- Waste heat recovery method and apparatus for chip, storage medium, and vehicle system18 Jun 2026US 2026/0173320 A1Zhejiang Geely Holding Group Co., Ltd.
- Heat dissipation method of vehicle led lamp, apparatus, electronic device, and storage medium25 Sep 2025US 2025/0297723 A1Easdar Optoelectronics(Guangdong) Co.,Ltd
- Vehicle Lamp and Vehicle1 May 2025US 2025/0137612 A1Shenzhen Yinwang Intelligent Technologies Co., Ltd.
- Cooling system for a vehicle lighting module27 Feb 2025US 2025/0067414 A1Valeo Vision
- Forward cooling headlight24 Oct 2024US 2024/0353082 A1Matrix Railway Corporation
Most cited
By later US patents
- Process of making a component with a passageway42US 8,916,085 B2A. Raymond Et Cie · 2014
- Liquid-cooled LED lighting device14US 8,419,249 B2Stanley Electric Co., Ltd. · 2013
- Cooling module and system for lamp device14US 8,851,154 B2Microbase Technology Corp. · 2014
- Lamp housing with interior cooling by a thermoelectric device10US 7,249,868 B2Visteon Global Technologies, Inc. · 2007
- Light-emitting diode arrangement and motor vehicle headlamp9US 7,683,395 B2OSRAM Opto Semiconductors GmbH · 2010