F02N 7/12
The engines being of rotary type
Official title: the engines being of rotary type, e.g. turbines (F02N7/14 takes precedence)
F02N7/12 (The engines being of rotary type) appears on 9 US grants and 5 published applications in this corpus.
Search patents in F02N- Granted patents
- 9
- Published applications
- 5
- Assignees
- 9
- Inventors
- 16
- Latest grant
- 23 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 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 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Air turbine starter torque control system23 May 2023US 11,655,765 B2Parker-Hannifin Corporation
- Integrated starter for aerial vehicle24 Mar 2020US 10,598,095 B2Unison Industries, LLC
- Combination shuttle and lubricator valve for an air starter13 Mar 2018US 9,915,237 B2Ingersoll-Rand Company
- Hybrid drive device4 Dec 2012US 8,326,475 B2Aisin Aw Co., Ltd.
- Stackable generator arrangement1 Nov 2011US 8,049,353 B1Florida Turbine Technologies, Inc.
- Air turbine starter torque control system23 Jun 2022US 2022/0195942 A1Parker-Hannifin Corporation
- Integrated starter for aerial vehicle12 Apr 2018US 2018/0100438 A1Unison Industries, LLC
- Combination shuttle and lubricator valve for an air starter30 Jun 2016US 2016/0186710 A1Ingersoll-Rand Company
- Housing for an electrical starter motor17 Oct 2013US 2013/0270828 A1Hamilton Sundstrand Corporation
- Hybrid drive device30 Sep 2010US 2010/0250037 A1Aisin Aw Co., Ltd.
Most cited
By later US patents
- Apparatus for starting aircraft engines and for operating auxiliary on-board power generating equipment71US 3,965,673 AVereinigte Flugtechnische Werke-Fokker GmbH · 1976
- Method and apparatus for windmill starts in gas turbine engines40US 4,062,185 AGeneral Electric Company · 1977
- Starting an aircraft engine and driving auxiliary, on-board equipment39US 4,077,202 AVereinigte Flugtechnische Werke-Fokker GmbH · 1978
- Hybrid drive device12US 8,326,475 B2Aisin Aw Co., Ltd. · 2012
- Stackable generator arrangement9US 8,049,353 B1Florida Turbine Technologies, Inc. · 2011