B64D 31/08
For keeping cruising speed constant
Official title: for keeping cruising speed constant
B64D31/08 (For keeping cruising speed constant) appears on 26 US grants and 25 published applications in this corpus.
Search patents in B64D- Granted patents
- 26
- Published applications
- 25
- Assignees
- 17
- Inventors
- 57
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 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 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 2 | 1 |
| 2020 | 3 | 3 |
| 2021 | 0 | 3 |
| 2022 | 2 | 2 |
| 2023 | 3 | 2 |
| 2024 | 4 | 3 |
| 2025 | 3 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods and apparatus for generating usage severity indices16 Dec 2025US 12,497,182 B2The Boeing Company
- Model-based speed governing for variable-pitch propeller2 Dec 2025US 12,486,023 B2Pratt & Whitney Canada Corp.
- Propulsor brake lock25 Mar 2025US 12,258,140 B2Honeywell International Inc.
- Pilot interface for aircraft autothrottle control10 Dec 2024US 12,162,616 B2Innovative Solutions & Support, Inc.
- Flexible nano coating with significantly enhanced electrical, thermal and semiconductor properties10 Sep 2024US 12,084,193 B2South Dakota Board of Regents
- Model-based speed governing for variable-pitch propeller10 Jul 2025US 2025/0223026 A1Pratt & Whitney Canada Corp.
- Flexible nano coating with significantly enhanced electrical, thermal and semiconductor properties26 Dec 2024US 2024/0425186 A1South Dakota Board of Regents
- Methods and apparatus for generating usage severity indices24 Oct 2024US 2024/0351698 A1The Boeing Company
- Propulsor brake lock22 Aug 2024US 2024/0278923 A1Honeywell International Inc.
- Aircraft propulsion system9 Mar 2023US 2023/0076465 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Throttle control system having manual and automatic modes of operation17US 5,039,037 AThe Boeing Company · 1991
- Retaining airspeed hold engagement in low speed maneuver15US 4,371,937 AUnited Technologies Corporation · 1983
- Autothrottle retard rate control system15US 6,186,447 B1The Boeing Company · 2001
- Automatic velocity control system for aircraft12US 7,931,238 B2Bell Helicopter Textron Inc. · 2011
- Aircraft cruise speed control9US 7,949,440 B2EMBRAER - Empresa Brasileira de Aeronautica S.A. · 2011