F23R 7/00
Intermittent or explosive combustion chambers
F23R7/00 (Intermittent or explosive combustion chambers) appears on 194 US grants and 270 published applications in this corpus.
Search patents in F23R- Granted patents
- 194
- Published applications
- 270
- Assignees
- 86
- Inventors
- 349
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 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 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 5 |
| 2005 | 8 | 11 |
| 2006 | 6 | 7 |
| 2007 | 3 | 10 |
| 2008 | 2 | 4 |
| 2009 | 5 | 12 |
| 2010 | 6 | 13 |
| 2011 | 5 | 7 |
| 2012 | 6 | 13 |
| 2013 | 10 | 10 |
| 2014 | 7 | 8 |
| 2015 | 7 | 11 |
| 2016 | 3 | 6 |
| 2017 | 7 | 10 |
| 2018 | 6 | 28 |
| 2019 | 13 | 20 |
| 2020 | 9 | 21 |
| 2021 | 13 | 10 |
| 2022 | 11 | 16 |
| 2023 | 22 | 11 |
| 2024 | 14 | 13 |
| 2025 | 13 | 13 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Combustion mode switching engine6 Oct 2026US 12,753,730 B2PD AeroSpace, LTD.
- Rotating detonation engines and related devices and methods5 May 2026US 12,618,565 B2University of Cincinnati
- Thermal management for ramjet-RDRE configuration of RBCC10 Mar 2026US 12,571,361 B2Venus Aerospace Corp.
- Rotating detonation-enabled augmentor systems17 Feb 2026US 12,553,612 B2General Electric Company
- Auxiliary power unit with pulse detonation combustion30 Dec 2025US 12,510,249 B2Pratt & Whitney Canada Corp.
- Dynamic heat insulation towards pressure gain combustion27 Aug 2026US 2026/0251307 A1UNM Rainforest Innovations
- Method of operating a rotating detonation combustor6 Aug 2026US 2026/0227070 A1General Electric Company
- Systems and methods for rotating detonation combustion satellite thrusters18 Jun 2026US 2026/0168464 A1Juno Propulsion Inc.
- Standing normal detonation jet engine and method of producing a standing normal detonation wave4 Jun 2026US 2026/0153065 A1University of Central Florida Research Foundation, Inc.
- Chamber for rotating detonation engine and wall obstacles for same7 May 2026US 2026/0126176 A1Rtx Corporation
Most cited
By later US patents
- Liquid fueled pulse detonation engine with controller and inlet and exit valves50US 5,901,550 AAdroit Systems, Inc. · 1999
- Wave rotor detonation engine49US 6,460,342 B1Advanced Research and Technology Institute, Inc. · 2002
- Pulse detonation electrical power generation apparatus with water injection45US 6,062,018 AAdroit Systems, Inc. · 2000
- Method for introducing additives37US 6,866,171 B2Sulzer Chemtech AG · 2005
- Electro-dynamic swirler, combustion apparatus and methods using the same37US 8,082,725 B2General Electric Company · 2011