F21K 9/235
Details of bases or caps, i.e. the parts that connect the light
Official title: Details of bases or caps, i.e. the parts that connect the light source to a fitting; Arrangement of components within bases or caps (F21K9/238 takes precedence)
F21K9/235 (Details of bases or caps, i.e. the parts that connect the light) appears on 623 US grants and 644 published applications in this corpus.
Search patents in F21K- Granted patents
- 623
- Published applications
- 644
- Assignees
- 189
- Inventors
- 798
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2007 | 0 | 3 |
| 2008 | 0 | 7 |
| 2009 | 2 | 6 |
| 2010 | 6 | 6 |
| 2011 | 6 | 9 |
| 2012 | 4 | 11 |
| 2013 | 9 | 10 |
| 2014 | 16 | 19 |
| 2015 | 8 | 22 |
| 2016 | 26 | 50 |
| 2017 | 55 | 85 |
| 2018 | 70 | 76 |
| 2019 | 86 | 79 |
| 2020 | 111 | 82 |
| 2021 | 58 | 47 |
| 2022 | 50 | 33 |
| 2023 | 39 | 30 |
| 2024 | 40 | 37 |
| 2025 | 26 | 18 |
| 2026 | 11 | 14 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Rotation-adjustable lamp with rotating sleeve sheathed on lamp body15 Sep 2026US 12,736,190 B2Savant Technologies LLC
- Bulb-type light source18 Aug 2026US 12,710,143 B2Seoul Semiconductor Co., Ltd.
- LED light bulb4 Aug 2026US 12,698,870 B2Jiaxing Super Lighting Electric Application Co., Ltd
- LED tube lamp4 Aug 2026US 12,698,871 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Lens for retrofitting a lighting system with LED lights21 Jul 2026US 12,690,120 B2
- Solid State Lamp Using Light Emitting Strips1 Oct 2026US 2026/0298419 A1Quarkstar LLC
- Led filament and light bulb using the same1 Oct 2026US 2026/0298420 A1Jiaxing Super Lighting Electric Appliance Co., Ltd
- Led filament lamp providing polarized light6 Aug 2026US 2026/0227039 A1Signify Holding B. V.
- A filament lamp30 Jul 2026US 2026/0218861 A1Signify Holding B. V.
- Lamp with functional indicator23 Jul 2026US 2026/0210503 A1Feit Electric Company, Inc.
Most cited
By later US patents
- Low profile light and accessory kit for the same118US 8,672,518 B2Lighting Science Group Corporation · 2014
- Solid state lamp using light emitting strips96US 8,314,566 B2Quarkstar LLC · 2012
- Circadian friendly LED light source84US 9,410,664 B2Soraa, Inc. · 2016
- Solid state lamp using modular light emitting elements75US 8,410,726 B2Quarkstar LLC · 2013
- LED tube lamp71US 9,609,711 B2Jiaxing Super Lighting Electric Appliance Co., Ltd · 2017