F03B 3/121
Blades, their form or construction
Official title: {Blades, their form or construction}
F03B3/121 (Blades, their form or construction) appears on 124 US grants and 159 published applications in this corpus.
Search patents in F03B- Granted patents
- 124
- Published applications
- 159
- Assignees
- 86
- Inventors
- 270
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 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 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 3 |
| 2009 | 0 | 2 |
| 2010 | 2 | 5 |
| 2011 | 2 | 9 |
| 2012 | 4 | 7 |
| 2013 | 4 | 12 |
| 2014 | 6 | 9 |
| 2015 | 4 | 17 |
| 2016 | 8 | 9 |
| 2017 | 8 | 6 |
| 2018 | 10 | 8 |
| 2019 | 14 | 11 |
| 2020 | 7 | 10 |
| 2021 | 7 | 12 |
| 2022 | 8 | 7 |
| 2023 | 8 | 8 |
| 2024 | 9 | 8 |
| 2025 | 8 | 5 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydraulic turbine29 Sep 2026US 12,747,716 B2Natel Energy Holdings, Inc.
- Horizontally-oriented conical-helical hydrokinetic turbine11 Aug 2026US 12,704,105 B2
- Split-type blade, fluid driving device and fluid driving proportional mixer19 May 2026US 12,629,648 B2Shanghai Vision Mechanical Joint Co., Ltd.
- Rotatable blade apparatus with individually adjustable blades10 Mar 2026US 12,571,370 B2Energyield LLC
- Method of making a turbine blade and runner including such a blade6 Jan 2026US 12,515,284 B2Voith Patent GmbH
- 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
- Turbine blade17 Sep 2026US 2026/0275959 A1The University Court of the University of Edinburgh
- Hydrokinetic turbine system27 Aug 2026US 2026/0251114 A1Emrgy Inc.
- Self-Cleaning Stator for Water Turbine7 May 2026US 2026/0126026 A1Cadens, LLC
Most cited
By later US patents
- Impeller having blade(s) conforming to the golden section of a logarithmic curve53US 6,702,552 B12004
- Rotor with logarithmic scaled shape40US 5,934,877 A1999
- Constant static pressure runner in an axial flow turbine18US 5,425,617 A1995
- Propeller blade configuration17US 5,226,804 AGeneral Electric Canada Inc. · 1993
- Turbine15US 4,545,726 ASulzer-Escher Wyss GmbH · 1985