B64C 11/002
Braking propellers
Official title: {Braking propellers, e.g. for measuring the power output of an engine}
B64C11/002 (Braking propellers) appears on 27 US grants and 23 published applications in this corpus.
Search patents in B64C- Granted patents
- 27
- Published applications
- 23
- Assignees
- 16
- Inventors
- 54
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 2 | 3 |
| 2016 | 1 | 4 |
| 2017 | 4 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 3 | 2 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
| 2023 | 3 | 4 |
| 2024 | 4 | 1 |
| 2025 | 4 | 2 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Propulsion device, propulsion control device, and computer readable storage medium6 Oct 2026US 12,752,907 B2Denso Corporation
- Propeller ground stop mechanism8 Jul 2025US 12,351,293 B1Wisk Aero LLC
- Aircraft propulsion system and methods of feathering3 Jun 2025US 12,319,400 B2Pratt & Whitney Canada Corp.
- Propulsor brake lock25 Mar 2025US 12,258,140 B2Honeywell International Inc.
- Propulsion unit with foldable propeller blades and method for stopping the propeller in an indexed angular position28 Jan 2025US 12,208,911 B2Safran Helicopter Engines
- Systems and methods for propulsor parking28 Aug 2025US 2025/0269973 A1Beta Air, LLC
- Propulsion device, propulsion control device, and computer readable storage medium13 Mar 2025US 2025/0083797 A1Denso Corporation
- Propulsor brake lock22 Aug 2024US 2024/0278923 A1Honeywell International Inc.
- Propulsion unit with foldable propeller blades and method for stopping the propeller in an indexed angular position2 Nov 2023US 2023/0348088 A1Safran Helicopter Engines
- Rotary wing aircraft12 Oct 2023US 2023/0322356 A1Societa' Per Azioni Curti-Costruzioni Meccaniche
Most cited
By later US patents
- Aerial package delivery system20US 10,131,437 B1Amazon Technologies, Inc. · 2018
- Aerial package delivery system14US 9,663,234 B1Amazon Technologies, Inc. · 2017
- Unmanned aerial vehicle drag augmentation by reverse propeller rotation12US 8,800,936 B2AeroVironment, Inc. · 2014
- System for aligning a propeller12US 9,586,673 B2AeroVironment, Inc. · 2017
- System for aligning a propeller7US 10,196,150 B2AeroVironment, Inc. · 2019