F23R 3/045
Using pipes
Official title: {using pipes}
F23R3/045 (Using pipes) appears on 177 US grants and 155 published applications in this corpus.
Search patents in F23R- Granted patents
- 177
- Published applications
- 155
- Assignees
- 57
- Inventors
- 359
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 8 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 0 | 0 |
| 2004 | 1 | 5 |
| 2005 | 2 | 0 |
| 2006 | 2 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 7 |
| 2011 | 2 | 0 |
| 2012 | 4 | 3 |
| 2013 | 2 | 9 |
| 2014 | 4 | 10 |
| 2015 | 4 | 8 |
| 2016 | 8 | 20 |
| 2017 | 5 | 11 |
| 2018 | 10 | 7 |
| 2019 | 12 | 20 |
| 2020 | 16 | 11 |
| 2021 | 16 | 15 |
| 2022 | 16 | 5 |
| 2023 | 10 | 12 |
| 2024 | 4 | 3 |
| 2025 | 8 | 4 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Orbital combustor fuel support architecture23 Jun 2026US 12,663,154 B1Rtx Corporation
- Combustion liner7 Apr 2026US 12,595,910 B2General Electric Company
- 3D diffuser fed scoop fuel injector6 Jan 2026US 12,516,816 B1Rtx Corporation
- Unitary case integrated flow scoops28 Oct 2025US 12,455,078 B1Rtx Corporation
- Annular combustor dilution with swirl vanes for lower emissions30 Sep 2025US 12,429,221 B2General Electric Company
- Rapid bulk swirl quench zone for super compact combustor13 Nov 2025US 2025/0347411 A1Rtx Corporation
- Turbine engine having a combustion section with a fuel nozzle assembly26 Jun 2025US 2025/0207780 A1General Electric Company
- Gas turbine engine and combustor therefor12 Jun 2025US 2025/0189130 A1GE AEROSPACE POLAND sp. z o. o.
- Combustor with dilution openings16 Jan 2025US 2025/0020324 A1General Electric Company
- Combustor with fuel and air mixing plenum8 Aug 2024US 2024/0263790 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Mixing ducts for a gas-turbine annular combustion chamber142US 5,839,283 AABB Research Ltd. · 1998
- Combustors81US 4,700,544 AUnited Technologies Corporation · 1987
- Thin wall combustor with backside impingement cooling79US 5,687,572 AAlliedSignal Inc. · 1997
- Gas turbine combustion chamber61US 4,301,657 ACaterpillar Tractor Co. · 1981
- Combustion chamber liner insert45US 4,875,339 AGeneral Electric Company · 1989