B64D 13/04
Automatic control of pressure
B64D13/04 (Automatic control of pressure) appears on 159 US grants and 150 published applications in this corpus.
Search patents in B64D- Granted patents
- 159
- Published applications
- 150
- Assignees
- 37
- Inventors
- 291
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 8 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 2 |
| 2004 | 5 | 4 |
| 2005 | 4 | 2 |
| 2006 | 2 | 5 |
| 2007 | 0 | 4 |
| 2008 | 3 | 5 |
| 2009 | 3 | 4 |
| 2010 | 3 | 5 |
| 2011 | 2 | 4 |
| 2012 | 3 | 3 |
| 2013 | 2 | 3 |
| 2014 | 5 | 8 |
| 2015 | 4 | 10 |
| 2016 | 6 | 5 |
| 2017 | 2 | 17 |
| 2018 | 11 | 18 |
| 2019 | 17 | 11 |
| 2020 | 16 | 6 |
| 2021 | 14 | 8 |
| 2022 | 6 | 6 |
| 2023 | 3 | 2 |
| 2024 | 6 | 4 |
| 2025 | 4 | 5 |
| 2026 | 1 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Distributed cabin pressure control system8 Sep 2026US 12,729,002 B2Honeywell International Inc.
- Cabin pressure control system28 Oct 2025US 12,454,360 B2Honeywell International Inc.
- Motor incorporating magnetic bearings2 Sep 2025US 12,404,029 B2Hamilton Sundstrand Corporation
- Digitally augmented pneumatic control13 May 2025US 12,298,789 B2Hamilton Sundstrand Corporation
- Air conditioning system for an aircraft cabin, comprising means for reheating the water collected by the water extraction loop21 Jan 2025US 12,202,609 B2Liebherr-Aerospace Toulouse SAS
- Cabin pressure control system25 Jun 2026US 2026/0175981 A1Honeywell International Inc.
- Cabin pressure control system18 Jun 2026US 2026/0167336 A1Honeywell International Inc.
- Air system for cabin pressurization7 May 2026US 2026/0125155 A1Honeywell International Inc.
- Air system with generator for cabin pressurization7 May 2026US 2026/0125156 A1Honeywell International Inc.
- Cabin Air Compressor Failure Alert System2 Apr 2026US 2026/0091884 A1United Airlines, Inc.
Most cited
By later US patents
- Aircraft cabin pressurization system53US 4,553,474 AThe Garrett Corporation · 1985
- Control of aircraft bleed air stage mixing48US 5,161,364 AUnited Technologies Corporation · 1992
- Clack valve and flap valve with a controlled valve as well as aircraft with controlled valve of this type30US 5,046,686 AABG Semca · 1991
- Adaptive aircraft cabin pressure control system27US 5,273,486 AUnited Technologies Corporation · 1993
- Aircraft hot-air supply system27US 6,058,725 AAerospatiale Societe Nationale Industrielle · 2000