F03B 3/00
Machines or engines of reaction type
Official title: Machines or engines of reaction type; Parts or details peculiar thereto
F03B3/00 (Machines or engines of reaction type) appears on 760 US grants and 822 published applications in this corpus.
Search patents in F03B- Granted patents
- 760
- Published applications
- 822
- Assignees
- 398
- Inventors
- 1,440
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 7 | 0 |
| 1980 | 9 | 0 |
| 1981 | 10 | 0 |
| 1982 | 7 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 8 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 9 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 18 | 0 |
| 2000 | 14 | 0 |
| 2001 | 10 | 3 |
| 2002 | 8 | 9 |
| 2003 | 11 | 6 |
| 2004 | 5 | 11 |
| 2005 | 8 | 20 |
| 2006 | 10 | 12 |
| 2007 | 10 | 16 |
| 2008 | 8 | 13 |
| 2009 | 4 | 18 |
| 2010 | 13 | 37 |
| 2011 | 7 | 43 |
| 2012 | 22 | 42 |
| 2013 | 34 | 53 |
| 2014 | 34 | 57 |
| 2015 | 21 | 48 |
| 2016 | 26 | 50 |
| 2017 | 39 | 33 |
| 2018 | 28 | 57 |
| 2019 | 50 | 43 |
| 2020 | 44 | 49 |
| 2021 | 45 | 51 |
| 2022 | 31 | 36 |
| 2023 | 42 | 29 |
| 2024 | 28 | 37 |
| 2025 | 37 | 27 |
| 2026 | 9 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F03B 3/12Blades360
- F03B 3/04Machines or engines of reaction type: with substantially axial flow throughout rotors179
- F03B 3/16Stators169
- F03B 3/02Machines or engines of reaction type: with radial flow at high-pressure side103
- F03B 3/10Machines or engines of reaction type: characterised by having means for functioning81
- F03B 3/08Machines or engines of reaction type: with pressure-velocity transformation exclusively in rotors23
Recent patents
- Hydraulic turbine29 Sep 2026US 12,747,716 B2Natel Energy Holdings, Inc.
- Fluid connection for a hydromotive machine15 Sep 2026US 12,736,025 B2
- Horizontally-oriented conical-helical hydrokinetic turbine11 Aug 2026US 12,704,105 B2
- Turbine device, power apparatus and power integrated system of electric power system16 Jun 2026US 12,655,824 B2
- Hydropower turbine26 May 2026US 12,637,996 B1Mesa Associates, Inc.
- Performance of airfoils and hydrofoils8 Oct 2026US 2026/0307777 A1SJK Energy Solutions, LLC
- Hydroturbine piece of a turbine comprising a modified trailing edge8 Oct 2026US 2026/0309114 A1GE Renewable Technologies
- Hydroelectric power generation device and power generation method based on axial-flow hydraulic turbine1 Oct 2026US 2026/0298190 A1Hebei Water Conservancy Engr Bureau Group Limited
- Turbine blade17 Sep 2026US 2026/0275959 A1The University Court of the University of Edinburgh
- Power integrated system of electric power system17 Sep 2026US 2026/0275961 A1
Most cited
By later US patents
- Underwater ducted turbine101US 7,471,009 B2Clean Current Power Systems Incorporated · 2008
- Portable water-powered electric generator100US 4,868,408 A1989
- Fluid pump apparatus81US 6,547,530 B2Ntn Corporation · 2003
- Method for utilizing angular momentum in energy conversion devices and an apparatus therefore72US 5,167,483 A1992
- Solar and wind energy generating system for a high rise building65US 5,394,016 A1995