F21V 29/78
With helically or spirally arranged fins or blades
Official title: with helically or spirally arranged fins or blades
F21V29/78 (With helically or spirally arranged fins or blades) appears on 106 US grants and 123 published applications in this corpus.
Search patents in F21V- Granted patents
- 106
- Published applications
- 123
- Assignees
- 68
- Inventors
- 197
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 5 |
| 2010 | 1 | 5 |
| 2011 | 3 | 16 |
| 2012 | 9 | 14 |
| 2013 | 13 | 20 |
| 2014 | 16 | 7 |
| 2015 | 9 | 13 |
| 2016 | 8 | 5 |
| 2017 | 10 | 4 |
| 2018 | 6 | 10 |
| 2019 | 9 | 3 |
| 2020 | 4 | 6 |
| 2021 | 4 | 2 |
| 2022 | 5 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
| 2026 | 2 | 5 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Optical assembly with swing-adjustable lens and lighting fixture incorporating the same8 Sep 2026US 12,729,833 B1E-Lite Lighting Co., Ltd.
- Electronics housing assembly with improved heat dissipation20 Jan 2026US 12,529,474 B2ABL IP Holding LLC
- Light11 Mar 2025US 12,247,729 B2Milwaukee Electric Tool Corporation
- Light emitting diode recessed light fixture2 Jan 2024US 11,859,796 B2Signify Holding B. V.
- Light24 Oct 2023US 11,796,166 B1Milwaukee Electric Tool Corporation
- Electronics housing assembly with improved heat dissipation1 Oct 2026US 2026/0298458 A1ABL IP Holding LLC
- Lighting fixture for outdoor use30 Jul 2026US 2026/0218887 A1Stella ImportaçãO E ExportaçãO De LumináRias Ltda
- Electronics housing assembly with improved heat dissipation23 Jul 2026US 2026/0210538 A1ABL IP Holding LLC
- Lamp and lighting equipment26 Mar 2026US 2026/0085816 A1Astera Manufacturing Limited
- Electronics housing assembly with improved heat dissipation8 Jan 2026US 2026/0009529 A1ABL IP Holding LLC
Most cited
By later US patents
- Light emitting diode illumination apparatus202US 7,226,189 B2Taiwan Oasis Technology Co., Ltd. · 2007
- Heat dissipation assembly for an LED downlight173US 8,220,970 B1Koninklijke Philips Electronics N. V. · 2012
- LED and LED lamp164US 7,497,596 B22009
- Light emitting diode recessed light fixture164US 7,959,332 B2Cooper Technologies Company · 2011
- Dimmable LED lamp78US 8,253,316 B2Light Prescriptions Innovators, LLC · 2012