B64D 27/355
Using fuel cells
Official title: using fuel cells
B64D27/355 (Using fuel cells) appears on 163 US grants and 318 published applications in this corpus.
Search patents in B64D- Granted patents
- 163
- Published applications
- 318
- Assignees
- 96
- Inventors
- 483
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 2 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 6 |
| 2009 | 5 | 1 |
| 2010 | 0 | 1 |
| 2011 | 2 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 4 |
| 2014 | 1 | 1 |
| 2015 | 2 | 3 |
| 2016 | 1 | 7 |
| 2017 | 2 | 5 |
| 2018 | 7 | 9 |
| 2019 | 1 | 3 |
| 2020 | 8 | 7 |
| 2021 | 4 | 10 |
| 2022 | 7 | 38 |
| 2023 | 20 | 44 |
| 2024 | 27 | 58 |
| 2025 | 41 | 56 |
| 2026 | 28 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Energy recovery system and method for an aircraft6 Oct 2026US 12,752,925 B2Airbus Operations S.L.U.
- Propulsion system thermal management with propulsor fluid flow and ram fluid flow29 Sep 2026US 12,747,027 B2Vertical Aerospace Group Limited
- Anti-stall system with a fuel cell22 Sep 2026US 12,742,425 B2General Electric Company
- Energy conversion arrangement, energy system and aircraft comprising same8 Sep 2026US 12,729,005 B2Airbus Operations GmbH
- Configuration for a LH2 fuel cell aircraft with distributed systems25 Aug 2026US 12,715,602 B2The Boeing Company
- Method and device for assisting the piloting of an aircraft comprising a hybrid power plant for indicating by haptic feedback an amount of electrical energy of an electrical energy source8 Oct 2026US 2026/0307784 A1Airbus Helicopters
- Wall element, especially for a safe chamber, as well as a safe chamber, an aircraft component and an aircraft equipped therewith8 Oct 2026US 2026/0307817 A1
- Propulsion and electrical system for an aircraft including a fuel cell and a turbine engine1 Oct 2026US 2026/0296655 A1GE AVIO S.r.I.
- Drive system for an aircraft24 Sep 2026US 2026/0285495 A1
- Assembly for aircraft, comprising a specific architecture for the distribution of fuel composition and electricity24 Sep 2026US 2026/0285498 A1
Most cited
By later US patents
- Personal hoverplane with four tiltmotors216US 6,655,631 B22003
- Aircraft propulsion system using air liquefaction and storage72US 5,106,035 AAurora Flight Sciences Corporation · 1992
- Vertical takeoff and landing aircraft66US 9,085,355 B2DeLorean Aerospace, LLC · 2015
- Fuel cell powered electric aircraft59US 6,568,633 B22003
- Hybrid propulsion system for a gas turbine engine including a fuel cell46US 10,774,741 B2General Electric Company · 2020