B64U 30/299
Rotor guards
Official title: Rotor guards (ducted or shrouded rotors B64U30/26; guards used as ground propulsion B64U60/60)
B64U30/299 (Rotor guards) appears on 168 US grants and 200 published applications in this corpus.
Search patents in B64U- Granted patents
- 168
- Published applications
- 200
- Assignees
- 99
- Inventors
- 364
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 4 | 7 |
| 2016 | 9 | 20 |
| 2017 | 10 | 23 |
| 2018 | 18 | 21 |
| 2019 | 22 | 21 |
| 2020 | 20 | 18 |
| 2021 | 11 | 11 |
| 2022 | 8 | 19 |
| 2023 | 15 | 21 |
| 2024 | 16 | 24 |
| 2025 | 26 | 8 |
| 2026 | 8 | 3 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Discrete delivery of material11 Aug 2026US 12,703,121 B2Contour Crafting Corporation
- Robot system housed on cell sites and towers4 Aug 2026US 12,697,735 B2ETAK Systems, LLC
- Robot and exoskeleton system for cell sites and towers28 Jul 2026US 12,691,590 B2ETAK Systems, LLC
- Landing gears for aerial vehicle to minimize aerodynamic drag during flight26 May 2026US 12,637,239 B2ideaForge Technology Limited
- Aerial vehicles with protective members for absorbing shock load during wire strike28 Apr 2026US 12,612,196 B2University of Kansas
- Aerial vehicles with protective members for absorbing shock load during wire strike27 Aug 2026US 2026/0250021 A1University of Kansas
- Vehicle Recovery System16 Jul 2026US 2026/0200610 A1The Johns Hopkins University
- Autonomous multifunctional inspection and rescue quadcopter drone system1 Jan 2026US 2026/0001666 A1
- Vertical Air Vehicle Takeoff and Landing Stabilization Apparatuses, Systems, and Methods18 Dec 2025US 2025/0382078 A1The Boeing Company
- Vtol uav with 3d lidar sensor2 Oct 2025US 2025/0304295 A1Flyability SA
Most cited
By later US patents
- Providing emergency medical services using unmanned aerial vehicles247US 9,051,043 B1Google Inc. · 2015
- Multi-part navigation process by an unmanned aerial vehicle for navigating to a medical situatiion181US 8,930,044 B1Google Inc. · 2015
- Transportation network utilizing autonomous vehicles for transporting items167US 9,786,187 B1Amazon Technologies, Inc. · 2017
- Request apparatus for delivery of medical support implement by UAV148US 9,307,383 B1Google Inc. · 2016
- Methods and systems for alerting and aiding an emergency situation84US 9,158,304 B2Google Inc. · 2015