B64U 50/00
Propulsion
Official title: Propulsion; Power supply
B64U50/00 (Propulsion) appears on 4,240 US grants and 5,317 published applications in this corpus.
Search patents in B64U- Granted patents
- 4,240
- Published applications
- 5,317
- Assignees
- 1,497
- Inventors
- 7,607
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 10 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 0 |
| 2002 | 10 | 9 |
| 2003 | 14 | 23 |
| 2004 | 10 | 21 |
| 2005 | 24 | 31 |
| 2006 | 24 | 29 |
| 2007 | 20 | 29 |
| 2008 | 11 | 20 |
| 2009 | 14 | 30 |
| 2010 | 24 | 53 |
| 2011 | 19 | 41 |
| 2012 | 49 | 47 |
| 2013 | 33 | 37 |
| 2014 | 29 | 82 |
| 2015 | 73 | 90 |
| 2016 | 100 | 253 |
| 2017 | 201 | 422 |
| 2018 | 293 | 520 |
| 2019 | 371 | 565 |
| 2020 | 465 | 595 |
| 2021 | 409 | 538 |
| 2022 | 388 | 507 |
| 2023 | 496 | 462 |
| 2024 | 490 | 366 |
| 2025 | 379 | 289 |
| 2026 | 228 | 258 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Charging connection device for drone6 Oct 2026US 12,752,646 B2Argosdyne Co. Ltd.
- Slip-through tether and attachment system for robot movement along a tether6 Oct 2026US 12,752,939 B2America as represented by the Secretary of the Army
- Unmanned aerial vehicle (UAV) landing systems6 Oct 2026US 12,756,053 B2United Parcel Service of America, Inc.
- Method and system for estimating flight time of a hydrogen fuel cell UAV29 Sep 2026US 12,746,825 B2Industrial Technology Research Institute
- Aerial vehicle with differential control mechanisms29 Sep 2026US 12,747,021 B2Joby Aero, Inc.
- Drone-based fire prevention, suppression and evacuation system8 Oct 2026US 2026/0306885 A1
- Battery thermal management system and method8 Oct 2026US 2026/0307534 A1Joby Aero, Inc.
- High-Efficiency UAV Flight Apparatus Integrating Gurney Flap and Distributed Propulsion System8 Oct 2026US 2026/0307775 A1National Yang Ming.Chiao Tung University
- Articulated ring wing evtol structure with distributed propulsion and advanced dynamic payload stabilization system and integrated energy regeneration and safety systems8 Oct 2026US 2026/0307829 A1Aerial MECHANICA Inc.
- Subminiature drone comprising rotary artificial muscle motor and operating method thereof8 Oct 2026US 2026/0307830 A1Iucf-Hyu (Industry-University Cooperation Foundation Hanyang University)
Most cited
By later US patents
- Multi-use UAV docking station systems and methods430US 9,387,928 B1Amazon Technologies, Inc. · 2016
- Systems and methods for UAV docking417US 9,056,676 B1Sz Dji Technology Co., Ltd. · 2015
- Sonotube compatible unmanned aerial vehicle and system413US 6,056,237 A2000
- Unmanned aerial vehicle base station367US 8,511,606 B1The Boeing Company · 2013
- Method of actively controlling winch swing via modulated uptake and release324US 9,422,139 B1Google Inc. · 2016