B64U 50/32
Generated by fuel cells
Official title: generated by fuel cells
B64U50/32 (Generated by fuel cells) appears on 108 US grants and 147 published applications in this corpus.
Search patents in B64U- Granted patents
- 108
- Published applications
- 147
- Assignees
- 73
- Inventors
- 270
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 3 |
| 2003 | 1 | 3 |
| 2004 | 0 | 2 |
| 2005 | 3 | 3 |
| 2006 | 0 | 1 |
| 2007 | 3 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 4 |
| 2010 | 2 | 2 |
| 2011 | 4 | 2 |
| 2012 | 2 | 2 |
| 2013 | 2 | 2 |
| 2014 | 0 | 9 |
| 2015 | 4 | 1 |
| 2016 | 2 | 5 |
| 2017 | 5 | 10 |
| 2018 | 5 | 9 |
| 2019 | 11 | 11 |
| 2020 | 4 | 12 |
| 2021 | 7 | 15 |
| 2022 | 8 | 17 |
| 2023 | 16 | 17 |
| 2024 | 16 | 8 |
| 2025 | 7 | 1 |
| 2026 | 5 | 5 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Method and system for estimating flight time of a hydrogen fuel cell UAV29 Sep 2026US 12,746,825 B2Industrial Technology Research Institute
- CBR-based energy management framework for hybrid UAVs based on state extraction18 Aug 2026US 12,709,421 B1King Fahd University of Petroleum and Minerals
- System and methods for mobile towing and lifting platforms21 Jul 2026US 12,686,494 B2Oqab Dietrich Induction Inc.
- Hydrogen fuel cell power source with metal bipolar plates16 Jun 2026US 12,658,462 B1The Government of the United States of America, as represented by the Secretary of the Navy
- Apparatus for controlling a flight, system having the same and method thereof26 May 2026US 12,640,042 B2Hyundai Motor Company
- Hydrogen Powered Vertical Take-Off And Landing Aircraft24 Sep 2026US 2026/0285514 A1
- Equatorial Stratospheric Sunbelts (ESS)17 Sep 2026US 2026/0274468 A1Sunlight Aerospace Inc.
- Wing tank vaporizer for solid oxide fuel cell on unmanned aircraft27 Aug 2026US 2026/0250009 A1Lockheed Martin Corporation
- Hydrogen Fueled Dual Fuselage Aircraft23 Jul 2026US 2026/0208864 A1Joby Aero, Inc.
- Frame device for a propulsion unit of a flight device25 Jun 2026US 2026/0179993 A1H3 Dynamics Holdings Pte. Ltd.
Most cited
By later US patents
- Multi-use UAV docking station systems and methods430US 9,387,928 B1Amazon Technologies, Inc. · 2016
- Rotary wing aircraft having a non-rotating structural backbone and a rotor blade pitch controller73US 7,789,341 B22010
- Solid oxide regenerative fuel cell for airplane power generation and storage55US 6,854,688 B2Ion America Corporation · 2005
- Rotorcraft having coaxial counter-rotating rotors which produce both vertical and horizontal thrust and method of controlled flight in all six degrees of freedom44US 7,604,198 B22009
- Unmanned device utilization methods and systems41US 9,044,543 B2Elwha LLC · 2015