F02K 9/14
Made from sheet-like materials
Official title: made from sheet-like materials, e.g. of carpet-roll type, of layered structure
F02K9/14 (Made from sheet-like materials) appears on 27 US grants and 18 published applications in this corpus.
Search patents in F02K- Granted patents
- 27
- Published applications
- 18
- Assignees
- 22
- Inventors
- 57
- Latest grant
- 28 Mar 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 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 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 2 | 2 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 0 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Systems and techniques for launching a payload28 Mar 2023US 11,613,385 B2EnergeticX.net, L.L.C.
- Thrust augmentation of an additively manufactured hybrid rocket system using secondary oxidizer injection9 Aug 2022US 11,408,376 B2Utah State University
- Methods of forming flexible structures for a rocket motor assembly2 Mar 2021US 10,934,973 B2Northrop Grumman Innovation Systems, Inc.
- Rocket motor with concentric propellant structures for shock mitigation4 Aug 2020US 10,731,604 B2Aerojet Rocketdyne, Inc.
- Solid propellant grain20 Aug 2019US 10,385,806 B2The United States of America as represented by the Secretary of the Army
- Hybrid Rocket Engine Fuel Grains with Radial Energy Compositional Variations14 Aug 2025US 2025/0257016 A1Firehawk Aerospace, Inc.
- Additively manufactured solid propellant material for rocket engines10 Jul 2025US 2025/0223935 A1
- Hybrid rocket engine fuel grains with compositional variations30 Jan 2025US 2025/0035070 A1Firehawk Aerospace, Inc.
- Hybrid rocket engine fuel grains with radial energy compositional variations8 Jun 2023US 2023/0174439 A1Firehawk Aerospace, Inc.
- Hybrid rocket engine fuel grains with radial energy compositional variations8 Jun 2023US 2023/0175460 A1Firehawk Aerospace, Inc.
Most cited
By later US patents
- Gas generating charge and a process for producing the same38US 4,408,534 ANippon Oil and Fats Co., Ltd. · 1983
- Systems and methods for casting hybrid rocket motor fuel grains38US 9,429,104 B2The Aerospace Corporation · 2016
- Stereolithographic rocket motor manufacturing method34US 8,844,133 B2The Aerospace Corporation · 2014
- Method and apparatus for enhancing combustion efficiency of solid fuel hybrid rocket motors26US 5,367,872 AThiokol Corporation · 1994
- Pyrotechnic materials17US 5,253,584 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1993