B64U 50/33
Generated by combustion engines
Official title: generated by combustion engines
B64U50/33 (Generated by combustion engines) appears on 64 US grants and 94 published applications in this corpus.
Search patents in B64U- Granted patents
- 64
- Published applications
- 94
- Assignees
- 53
- Inventors
- 195
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 4 |
| 2017 | 1 | 12 |
| 2018 | 9 | 8 |
| 2019 | 7 | 4 |
| 2020 | 6 | 8 |
| 2021 | 3 | 4 |
| 2022 | 7 | 7 |
| 2023 | 5 | 15 |
| 2024 | 9 | 12 |
| 2025 | 9 | 13 |
| 2026 | 6 | 3 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Hybrid drive and fuel vaporizer for UAV and other mobile environments18 Aug 2026US 12,709,419 B2LiquidPiston, Inc.
- Hybrid electric drive systems for unmanned aircraft systems14 Jul 2026US 12,679,574 B2Dragoon Technology LLC
- Systems and methods for controlling torque for aerial vehicle16 Jun 2026US 12,654,886 B2Sonin Hybrid, LLC
- Aircraft12 May 2026US 12,623,798 B2ORTHODRONE GmbH
- Mobile engine-generator vehicle28 Apr 2026US 12,612,198 B2LiquidPiston, Inc.
- Systems and methods for controlling torque for aerial vehicle24 Sep 2026US 2026/0285508 A1Sonin Hybrid, LLC
- Mobile Engine-Generator Vehicle17 Sep 2026US 2026/0274467 A1LiquidPiston, Inc.
- Equatorial Stratospheric Sunbelts (ESS)17 Sep 2026US 2026/0274468 A1Sunlight Aerospace Inc.
- Unmanned aerial vehicle and control module for vegetation trimming11 Dec 2025US 2025/0374866 A1Xylem I LLC
- Aerial vehicle6 Nov 2025US 2025/0340297 A1Kubota Corporation
Most cited
By later US patents
- Aircraft capable of vertical take-off46US 10,131,426 B2Airbus Defence and Space GmbH · 2018
- Aircraft capable of vertical takeoff34US 10,029,785 B2Airbus Defence and Space GmbH · 2018
- Hybrid propulsion vertical take-off and landing aircraft29US 10,926,874 B2Aurora Flight Sciences Corporation · 2021
- Data center powered by a hybrid generator system26US 9,902,495 B2Top Flight Technologies, Inc. · 2018
- Vertical take-off and landing aircraft and transformation gear sets for same24US 11,401,042 B2Flyworks Ltd. · 2022