B64U 30/293
Foldable or collapsible rotors or rotor supports
B64U30/293 (Foldable or collapsible rotors or rotor supports) appears on 317 US grants and 427 published applications in this corpus.
Search patents in B64U- Granted patents
- 317
- Published applications
- 427
- Assignees
- 176
- Inventors
- 613
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 2 | 4 |
| 2013 | 1 | 3 |
| 2014 | 1 | 7 |
| 2015 | 11 | 11 |
| 2016 | 14 | 28 |
| 2017 | 10 | 38 |
| 2018 | 28 | 45 |
| 2019 | 28 | 40 |
| 2020 | 52 | 59 |
| 2021 | 20 | 31 |
| 2022 | 28 | 31 |
| 2023 | 32 | 37 |
| 2024 | 25 | 19 |
| 2025 | 37 | 31 |
| 2026 | 27 | 38 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Panoramic unmanned aerial vehicle6 Oct 2026US 12,752,941 B2Antigravity (Sz) Technology Co., Ltd.
- Drone29 Sep 2026US 12,747,042 B2
- Aeronautical vehicle and method of transitioning between flight modes for an aeronautical vehicle22 Sep 2026US 12,741,736 B2Technische Universiteit Delft
- Distributed propulsion system for vertical take off and landing closed wing aircraft8 Sep 2026US 12,728,983 B2Textron Innovations Inc.
- Multicopter18 Aug 2026US 12,709,418 B2Real-Time Robotics Inc
- Transportation drone1 Oct 2026US 2026/0296691 A1
- Drone with folding propellers24 Sep 2026US 2026/0285512 A1
- Image Stabilization For Autonomous Aerial Vehicles17 Sep 2026US 2026/0274458 A1Skydio, Inc.
- Unmanned aerial vehicle system with integrated fire suppression and window-breaking projectile mechanism10 Sep 2026US 2026/0264896 A1Eagle Eye Robotics
- Arm fixation module and unmanned aerial vehicle10 Sep 2026US 2026/0264897 A1Wistron Corporation
Most cited
By later US patents
- Helicopter with folding rotor arms204US 8,292,215 B2Draganfly Innovations Inc. · 2012
- Dual rotor helicopter with tilted rotational axes152US 8,052,081 B2Draganfly Innovations Inc. · 2011
- Vehicle with aerial and ground mobility125US 8,991,740 B2Draganfly Innovations Inc. · 2015
- Modular and morphable air vehicle125US 9,045,226 B2Piasecki Aircraft Corporation · 2015
- Unmanned aircraft system (UAS) with active energy harvesting and power management122US 9,527,588 B12016