F21V 7/046
With involute curvature
Official title: {with involute curvature}
F21V7/046 (With involute curvature) appears on 5 US grants and 7 published applications in this corpus.
Search patents in F21V- Granted patents
- 5
- Published applications
- 7
- Assignees
- 6
- Inventors
- 15
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 3 | 2 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Lighting devices, light distribution-modifying elements, and methods2 Jun 2026US 12,644,581 B2Korrus, Inc.
- High visual comfort road and urban LED lighting13 Oct 2020US 10,801,698 B2Signify Holding B. V.
- Optical device and lighting device25 Aug 2020US 10,753,573 B2Nichia Corporation
- Lamp2 Jun 2020US 10,670,207 B2H4X e.U.
- Twisted downlight reflectors12 Dec 2017US 9,841,164 B2BEGA Gantenbrink-Leuchten KG
- Light exit window having adjustable contrast sensitivity9 Jul 2026US 2026/0194208 A1Signify Holding B. V.
- Lighting devices, light distribution-modifying elements, and methods2 Jan 2025US 2025/0003575 A1Korrus, Inc.
- Optical device and lighting device14 May 2020US 2020/0149708 A1Nichia Corporation
- High visual comfort road and urban led lighting2 Jan 2020US 2020/0003395 A1Signify Holding B. V.
- Flexible light belt apparatus8 Aug 2019US 2019/0242538 A1Xiamen Eco Lighting Co. Ltd.
Most cited
By later US patents