F21Y 2103/20
Elongate light sources: of polygonal shape
Official title: of polygonal shape, e.g. square or rectangular
F21Y2103/20 (Elongate light sources: of polygonal shape) appears on 107 US grants and 126 published applications in this corpus.
Search patents in F21Y- Granted patents
- 107
- Published applications
- 126
- Assignees
- 85
- Inventors
- 224
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2010 | 0 | 4 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 3 |
| 2014 | 2 | 2 |
| 2015 | 0 | 3 |
| 2016 | 12 | 7 |
| 2017 | 4 | 6 |
| 2018 | 9 | 15 |
| 2019 | 12 | 14 |
| 2020 | 12 | 14 |
| 2021 | 13 | 18 |
| 2022 | 13 | 12 |
| 2023 | 3 | 6 |
| 2024 | 12 | 11 |
| 2025 | 8 | 5 |
| 2026 | 6 | 5 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Flat panel lighting device and retrofit kit48US 8,915,636 B2PIXI Lighting, Inc. · 2014
- Flat panel lighting device31US 9,453,616 B2PIXI Lighting, Inc. · 2016
- Flat panel lighting device and driving circuitry23US 9,441,801 B1PIXI Lighting, Inc. · 2016
- Suspended pendant lightguide luminaire with sound dampening15US 10,725,231 B2Signify Holding B. V. · 2020
- Flat panel lighting device15US 9,664,365 B2PIXI Lighting, Inc. · 2017