F21K 9/272
Details of end parts, i.e. the parts that connect the light source
Official title: Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts (F21K9/278 takes precedence)
F21K9/272 (Details of end parts, i.e. the parts that connect the light source) appears on 470 US grants and 505 published applications in this corpus.
Search patents in F21K- Granted patents
- 470
- Published applications
- 505
- Assignees
- 181
- Inventors
- 751
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 4 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 2 | 4 |
| 2010 | 1 | 17 |
| 2011 | 7 | 14 |
| 2012 | 11 | 24 |
| 2013 | 20 | 31 |
| 2014 | 20 | 22 |
| 2015 | 17 | 29 |
| 2016 | 26 | 42 |
| 2017 | 56 | 83 |
| 2018 | 55 | 48 |
| 2019 | 77 | 66 |
| 2020 | 48 | 41 |
| 2021 | 41 | 29 |
| 2022 | 31 | 11 |
| 2023 | 18 | 14 |
| 2024 | 17 | 8 |
| 2025 | 8 | 8 |
| 2026 | 10 | 6 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- LED lamp and misuse warning module thereof29 Sep 2026US 12,747,836 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- LED tube lamp4 Aug 2026US 12,698,871 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Adaptor device and lamp assembly using the same21 Jul 2026US 12,687,264 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- LED lamp, integrated circuit and power supply module thereof21 Jul 2026US 12,687,265 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- LED tubular lighting device16 Jun 2026US 12,655,948 B2Signify Holding B. V.
- Emergency lighting device with detachable end caps20 Aug 2026US 2026/0243396 A1Xiamen PVTECH Co., Ltd.
- Led tube lamp20 Aug 2026US 2026/0243397 A1Jiaxing Super Lighting Electric Appliance Co., Ltd
- Plug-in tube lamp18 Jun 2026US 2026/0168631 A1Ledvance Lighting Co., Ltd.
- Light-emitting diode tube light having a flexible circuit board connection structure11 Jun 2026US 2026/0160395 A1Xiamen PVTECH Co., Ltd.
- Ceiling light led retrofit kit21 May 2026US 2026/0139816 A1Power Concepts, LLC
Most cited
By later US patents
- Light tube and power supply circuit300US 7,049,761 B2Altair Engineering, Inc. · 2006
- LED lighting device for replacing fluorescent tubes268US 7,510,299 B2Altair Engineering, Inc. · 2009
- Light sources incorporating light emitting diodes172US 8,093,823 B1Altair Engineering, Inc. · 2012
- Light-emitting diode lamp and light fixture including same141US 6,997,576 B1Ledtronics, Inc. · 2006
- Independent modules for LED fluorescent light tube replacement135US 8,454,193 B2iLumisys, Inc. · 2013