F03D 3/009
Of the drag type
Official title: {of the drag type, e.g. Savonius}
F03D3/009 (Of the drag type) appears on 36 US grants and 48 published applications in this corpus.
Search patents in F03D- Granted patents
- 36
- Published applications
- 48
- Assignees
- 20
- Inventors
- 87
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2023 | 1 | 6 |
| 2024 | 14 | 17 |
| 2025 | 18 | 16 |
| 2026 | 3 | 9 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Floating hybrid darrieus-savonius tidal/wave/wind harvesting system24 Mar 2026US 12,584,459 B2University of Maryland, Baltimore County
- Double set of blades wind powered turbine24 Feb 2026US 12,560,148 B2Earth Friendly Energy Solutions, Inc.
- No funnel housing wind turbine6 Jan 2026US 12,516,659 B2
- Spinning energy device30 Dec 2025US 12,510,051 B1
- Wind power collection device, gas storage device, and power generation system2 Dec 2025US 12,486,826 B2Tranf Technology (Xiamen) Co., Ltd.
- Mechanical energy generation system for sustainable clean energy17 Sep 2026US 2026/0275960 A1
- Hybrid turbine20 Aug 2026US 2026/0243227 A1
- Power plant with vertical axis wind turbines13 Aug 2026US 2026/0235103 A1Energypier AG
- An apparatus for controlling fluid flow to turbines4 Jun 2026US 2026/0153074 A1Newco142 Limited
- Wind turbine28 May 2026US 2026/0146582 A1
Most cited
By later US patents
- Double set of blades wind powered turbine2US 12,247,548 B1Earth Friendly Energy Solutions, Inc. · 2025
- Frictionless spinning device1US 11,686,285 B12023
- Frictionless spinning energy device1US 11,939,963 B12024
- Vertical-axis wind turbine1US 11,994,103 B22024
- Hurricane vertical-axis wind turbines1US 12,012,928 B22024