F01D 25/30
Exhaust heads, chambers, or the like
F01D25/30 (Exhaust heads, chambers, or the like) appears on 972 US grants and 1,049 published applications in this corpus.
Search patents in F01D- Granted patents
- 972
- Published applications
- 1,049
- Assignees
- 249
- Inventors
- 2,036
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 11 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 2 |
| 2002 | 7 | 12 |
| 2003 | 11 | 8 |
| 2004 | 12 | 14 |
| 2005 | 8 | 12 |
| 2006 | 7 | 10 |
| 2007 | 7 | 15 |
| 2008 | 4 | 17 |
| 2009 | 15 | 20 |
| 2010 | 14 | 35 |
| 2011 | 16 | 30 |
| 2012 | 31 | 34 |
| 2013 | 25 | 65 |
| 2014 | 30 | 58 |
| 2015 | 32 | 91 |
| 2016 | 43 | 106 |
| 2017 | 71 | 70 |
| 2018 | 76 | 67 |
| 2019 | 73 | 52 |
| 2020 | 68 | 50 |
| 2021 | 56 | 61 |
| 2022 | 58 | 49 |
| 2023 | 58 | 46 |
| 2024 | 47 | 41 |
| 2025 | 52 | 44 |
| 2026 | 38 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus and method of purging gas turbine exhaust trough to reduce hot flow leakage29 Sep 2026US 12,747,680 B2General Electric Company
- Turbine exhaust duct having shielding conduits29 Sep 2026US 12,747,701 B1Pratt & Whitney Canada Corp.
- Turbine exhaust duct for aircraft engine22 Sep 2026US 12,742,401 B2Pratt & Whitney Canada Corp.
- Mobile electric power generation with lateral side combustion air supply25 Aug 2026US 12,716,364 B1Typhon Technology Solutions (U.S.), LLC
- Sound-attenuating devices18 Aug 2026US 12,709,996 B2Solar Turbines Incorporated
- Exhaust duct of a turbine test bench comprising a double tube24 Sep 2026US 2026/0286865 A1
- Expander and thermodynamic cycle using the expander17 Sep 2026US 2026/0275871 A1Nuovo Pignone Tecnologie Srl
- Turbine for an aircraft generating swirl in exhaust gases17 Sep 2026US 2026/0275885 A1General Electric Company
- Gas turbine engine10 Sep 2026US 2026/0266202 A1Kawasaki Jukogyo Kabushiki Kaisha
- Machine for cutting fabric20 Aug 2026US 2026/0241600 A1
Most cited
By later US patents
- Mobile electric power generation for hydraulic fracturing of subsurface geological formations496US 9,534,473 B2Evolution Well Services, LLC · 2017
- Mobile electric power generation for hydraulic fracturing of subsurface geological formations287US 9,562,420 B2Evolution Well Services, LLC · 2017
- Mobile electric power generation for hydraulic fracturing of subsurface geological formations194US 10,374,485 B2Typhon Technology Solutions, LLC · 2019
- Outlet silencer and heat recovery structures for gas turbine177US 6,851,514 B2Air Handling Engineering Ltd. · 2005
- Exhaust silencer for microturbines170US 7,980,357 B2OfficePower, Inc. · 2011