B64C 1/1453
Drain masts
Official title: {Drain masts}
B64C1/1453 (Drain masts) appears on 89 US grants and 85 published applications in this corpus.
Search patents in B64C- Granted patents
- 89
- Published applications
- 85
- Assignees
- 40
- Inventors
- 220
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 0 |
| 2004 | 2 | 1 |
| 2005 | 1 | 2 |
| 2006 | 2 | 5 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 2 | 4 |
| 2010 | 4 | 4 |
| 2011 | 2 | 4 |
| 2012 | 4 | 3 |
| 2013 | 2 | 4 |
| 2014 | 7 | 6 |
| 2015 | 2 | 8 |
| 2016 | 9 | 7 |
| 2017 | 5 | 5 |
| 2018 | 3 | 6 |
| 2019 | 4 | 3 |
| 2020 | 9 | 5 |
| 2021 | 2 | 4 |
| 2022 | 2 | 0 |
| 2023 | 2 | 2 |
| 2024 | 3 | 2 |
| 2025 | 2 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aircraft provided with an engine and an exhaust duct that is drained around an exhaust nozzle of the engine7 Apr 2026US 12,595,072 B2Airbus Helicopters
- Auto-siphon drainage system for aircraft10 Feb 2026US 12,546,345 B2Textron Innovations Inc.
- Drain apparatus29 Jul 2025US 12,371,143 B2The Boeing Company
- Aircraft drainage valve, tool for checking the correct operation of said drainage valve and method for checking the operation of said drainage valve using said checking tool6 May 2025US 12,292,137 B2Airbus Operations GmbH
- Device and method for emptying and monitoring fluid drained from an engine of an aircraft18 Jun 2024US 12,012,230 B2Safran Aircraft Engines
- Aircraft Cabin Under Seat Fluid Diverting Apparatus and Method27 Aug 2026US 2026/0249994 A1The Boeing Company
- Activation tooling for a control comprising at least one tool configured to cooperate with the control as well as at least one device for holding the tool4 Jun 2026US 2026/0153165 A1Airbus Canada Limited Partnership
- Drain Mast14 Aug 2025US 2025/0256831 A1The Boeing Company
- Deployable drains mast12 Jun 2025US 2025/0187746 A1Rohr, Inc.
- Auto-siphon drainage system for aircraft30 Jan 2025US 2025/0035138 A1Textron Innovations Inc.
Most cited
By later US patents
- Apparatus for draining waste water from aircraft39US 5,655,732 ADaimler-Benz Aerospace Airbus GmbH · 1997
- Modular drainmast for aircraft24US 5,552,576 AThe B. F. Goodrich Company · 1996
- Lavatory wastewater disposal system for aircraft23US 4,202,061 AThe Boeing Company · 1980
- Fuselage-mounted valve for condensate drainage and cabin-air pressurization22US 4,463,774 AThe Boeing Company · 1984
- Modular drainmast for aircraft21US 5,290,996 AThe B. F. Goodrich Company · 1994