F05D 2240/1281
Plug nozzles
F05D2240/1281 (Plug nozzles) appears on 42 US grants and 33 published applications in this corpus.
Search patents in F05D- Granted patents
- 42
- Published applications
- 33
- Assignees
- 21
- Inventors
- 73
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 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 | 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 | 1 |
| 2003 | 4 | 1 |
| 2004 | 0 | 3 |
| 2005 | 4 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 4 |
| 2016 | 0 | 0 |
| 2017 | 4 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 2 |
| 2020 | 3 | 0 |
| 2021 | 1 | 5 |
| 2022 | 4 | 2 |
| 2023 | 5 | 2 |
| 2024 | 6 | 3 |
| 2025 | 1 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reusable upper stage rocket14 Apr 2026US 12,601,314 B2
- Rear-cone exhaust duct for additive manufacturing24 Feb 2026US 12,560,103 B2Pratt & Whitney Canada Corp.
- Low-frequency acoustic center body21 Oct 2025US 12,448,935 B2Rohr, Inc.
- Low-frequency acoustic center body15 Oct 2024US 12,116,955 B2Rohr, Inc.
- Variable area nozzle assembly for an aircraft propulsion system8 Oct 2024US 12,110,839 B1Rtx Corporation
- Augmented Aerospike Nozzle, Engine Including the Augmented Aerospike Nozzle, and Vehicle Including the Engine5 Feb 2026US 2026/0036103 A1STOKE Space Technologies, Inc.
- Design of a rear-cone exhaust duct for additive manufacturing5 Jun 2025US 2025/0179939 A1Pratt & Whitney Canada Corp.
- Low-frequency acoustic center body2 Jan 2025US 2025/0003374 A1Rohr, Inc.
- Reusable upper stage rocket5 Dec 2024US 2024/0401548 A1STOKE Space Technologies, Inc.
- Low-frequency acoustic center body16 May 2024US 2024/0159203 A1Rohr, Inc.
Most cited
By later US patents
- Asonic aerospike engine26US 6,213,431 B12001
- Pulse detonation aerospike engine22US 6,516,605 B1General Electric Company · 2003
- Axisymmetric, throttleable non-gimballed rocket engine21US 6,964,154 B1The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2005
- Method and apparatus for thrust augmentation for rocket nozzles16US 6,983,587 B22006
- Axisymmetrical annular plug nozzle15US 3,940,067 AThe United States of America as represented by the Secretary of the Navy · 1976