B64D 27/24
Using steam or spring force
Official title: using steam or spring force (jet aircraft B64D27/16)
B64D27/24 (Using steam or spring force) appears on 340 US grants and 439 published applications in this corpus.
Search patents in B64D- Granted patents
- 340
- Published applications
- 439
- Assignees
- 128
- Inventors
- 611
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 3 |
| 2017 | 2 | 1 |
| 2018 | 1 | 10 |
| 2019 | 3 | 3 |
| 2020 | 10 | 20 |
| 2021 | 8 | 29 |
| 2022 | 22 | 48 |
| 2023 | 40 | 71 |
| 2024 | 60 | 133 |
| 2025 | 140 | 81 |
| 2026 | 52 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Energy source using atomic species6 Oct 2026US 12,753,744 B2PerriQuest Defense Research Enterprises, LLC
- Apparatus for controlling temperature and pressure of aircraft29 Sep 2026US 12,747,023 B2Hyundai Motor Company
- Distributed propulsion system for vertical take off and landing closed wing aircraft8 Sep 2026US 12,728,983 B2Textron Innovations Inc.
- System controller for series hybrid powertrain1 Sep 2026US RE51,020 E1Zunum Aero, Inc.
- Fault current mitigation for an electrical power conversion system25 Aug 2026US 12,715,592 B2General Electric Company
- System and method of rotor management8 Oct 2026US 2026/0307786 A1Beta Air, LLC
- Battery module for an electrically-driven aircraft, method for manufacturing a battery module and electrically-driven aircraft powered by a battery module1 Oct 2026US 2026/0296265 A1H55 SA
- Multi-drive unit powerplant for an aircraft1 Oct 2026US 2026/0296660 A1Pratt & Whitney Canada Corp.
- Modular Battery Systems for Aircraft17 Sep 2026US 2026/0274089 A1Textron Innovations Inc.
- Flying wing vertical take-off and landing aircraft10 Sep 2026US 2026/0264853 A1Archer Aviation Inc.
Most cited
By later US patents
- System and methods for implementing regional air transit network using hybrid-electric aircraft51US 9,561,860 B2Tzunum, Inc. · 2017
- Remotely controlled electric airplane39US 3,957,230 A1976
- Controlled flight of a multicopter experiencing a failure affecting an effector39US 9,856,016 B2ETH Zurich · 2018
- System and methods for implementing regional air transit network using hybrid-electric aircraft27US 10,501,194 B2Zunum Aero, Inc. · 2019
- Flying vehicle systems and methods22US 11,603,219 B2Workhorse Group Inc. · 2023