B64D 37/22
Facilitating emptying in any position of tank
Official title: facilitating emptying in any position of tank
B64D37/22 (Facilitating emptying in any position of tank) appears on 20 US grants and 18 published applications in this corpus.
Search patents in B64D- Granted patents
- 20
- Published applications
- 18
- Assignees
- 21
- Inventors
- 49
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 2 | 2 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aircraft fuel storage system25 Aug 2026US 12,715,604 B2Airbus Operations GmbH
- Tank system with a valve in the form of a pendulum system28 Jan 2025US 12,208,914 B2Airbus Operations GmbH
- Tank comprising a capture device operating independently of the inclination of the tank, aircraft comprising at least one such tank17 Dec 2024US 12,168,567 B2Airbus Operations GmbH
- Fluid tank for integration into a structure of an unmanned aircraft20 Aug 2024US 12,065,259 B2Airbus Defence and Space GmbH
- Jet engine27 Jul 2021US 11,073,041 B2Rolls-Royce Deutschland Ltd & Co KG
- Aircraft fuel storage system18 Jul 2024US 2024/0239510 A1Airbus Operations GmbH
- Tank system with a valve in the form of a pendulum system28 Dec 2023US 2023/0415909 A1Airbus Operations GmbH
- Tank comprising a capture device operating independently of the inclination of the tank, aircraft comprising at least one such tank9 Nov 2023US 2023/0356926 A1Airbus Operations GmbH
- Fluid Tank For Integration Into A Structure Of An Unmanned Aircraft8 Dec 2022US 2022/0388658 A1Airbus Defence and Space GmbH
- Fluid supply over range of gravitational conditions6 Feb 2020US 2020/0040982 A1United Technologies Corporation
Most cited
By later US patents
- Uninterruptible oil supply system51US 6,463,819 B1Pratt & Whitney Canada Corp. · 2002
- Reservoir for aircraft19US 5,141,179 ASociete Nationale Industrielle et Aerospatiale · 1992
- Tank suitable for holding liquids18US 4,287,913 AROLLS-ROYCE plc · 1981
- Apparatus for supplying fuel under negative gravity conditions16US 4,813,445 AParker-Hannifin Corporation · 1989
- Liquid circuit reservoir12US 6,394,123 B2Techspace Aero S.A. · 2002