F21K 9/237
Details of housings or cases, i.e. the parts between the light-generating element
Official title: Details of housings or cases, i.e. the parts between the light-generating element and the bases; Arrangement of components within housings or cases (F21K9/238 takes precedence)
F21K9/237 (Details of housings or cases, i.e. the parts between the light-generating element) appears on 527 US grants and 581 published applications in this corpus.
Search patents in F21K- Granted patents
- 527
- Published applications
- 581
- Assignees
- 199
- Inventors
- 809
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2008 | 0 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 2 | 5 |
| 2013 | 2 | 6 |
| 2014 | 3 | 9 |
| 2015 | 5 | 12 |
| 2016 | 14 | 25 |
| 2017 | 27 | 68 |
| 2018 | 43 | 89 |
| 2019 | 94 | 89 |
| 2020 | 124 | 96 |
| 2021 | 58 | 45 |
| 2022 | 43 | 30 |
| 2023 | 35 | 38 |
| 2024 | 35 | 32 |
| 2025 | 34 | 18 |
| 2026 | 7 | 12 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Wireless controllable lighting device25 Aug 2026US 12,716,575 B2Lutron Technology Company LLC
- Lighting assembly and emergency indicator light comprising the same28 Jul 2026US 12,692,994 B2Je Woo Corporation, Ltd.
- Lighting element with insect repelling element21 Jul 2026US 12,685,303 B2PIC Corporation
- Lens for retrofitting a lighting system with LED lights21 Jul 2026US 12,690,120 B2
- Sealed and waterproof high-power shock-resistant bulb30 Jun 2026US 12,669,223 B1Dongguan Huanhui Technology Co., Ltd.
- Lighting element with insect repelling element8 Oct 2026US 2026/0305598 A1PIC Corporation
- Wireless controllable lighting device8 Oct 2026US 2026/0309313 A1Lutron Technology Company LLC
- Solid State Lamp Using Light Emitting Strips1 Oct 2026US 2026/0298419 A1Quarkstar LLC
- Light emitting device27 Aug 2026US 2026/0255744 A1Seoul Semiconductor Co., Ltd.
- A lamp with active cooling6 Aug 2026US 2026/0227060 A1Signify Holding B. V.
Most cited
By later US patents
- Solid state lamp using light emitting strips96US 8,314,566 B2Quarkstar LLC · 2012
- Multi-purpose lightbulb62US 9,408,282 B1Astro Corp. · 2016
- Multi-purpose lightbulb62US 9,784,417 B1Astro Corp. · 2017
- Light emitting diode (LED) lighting device or lamp with configurable light qualities57US 9,801,250 B1Feit Electric Company, Inc. · 2017
- High efficiency LEDS and LED lamps53US 8,338,849 B2Cooledge Lighting Inc. · 2012