B21H 7/16
Turbine blades
Official title: turbine blades; compressor blades; propeller blades
B21H7/16 (Turbine blades) appears on 23 US grants and 17 published applications in this corpus.
Search patents in B21H- Granted patents
- 23
- Published applications
- 17
- Assignees
- 13
- Inventors
- 58
- Latest grant
- 10 Nov 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 5 |
| 2016 | 4 | 0 |
| 2017 | 3 | 2 |
| 2018 | 1 | 3 |
| 2019 | 0 | 0 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Hollow titanium airfoil with titanium coating10 Nov 2020US 10,830,064 B2Raytheon Technologies Corporation
- Method of forming aluminum alloy airfoils7 Jul 2020US 10,704,127 B2Raytheon Technologies Corporation
- Deep rolling tool for blade fatigue life enhancement19 Jun 2018US 9,999,958 B2United Technologies Corporation
- Deep rolling tool for blade fatigue life enhancement21 Feb 2017US 9,573,175 B2United Technologies Corporation
- Deep rolling tool for processing blade root21 Feb 2017US 9,573,184 B2United Technologies Corporation
- Robotic deep rolling tool design for mechanical surface treatment of complex blade root geometry22 May 2025US 2025/0162011 A1Rtx Corporation
- Robotic deep rolling tool design for mechanical surface treatment of extremely complex and tight clearance blade root geometry22 May 2025US 2025/0162017 A1Rtx Corporation
- Hollow titanium airfoil with titanium coating13 Dec 2018US 2018/0355733 A1United Technologies Corporation
- Deep rolling tool and method21 Jun 2018US 2018/0171447 A1United Technologies Corporation
- Deep rolling tool and method21 Jun 2018US 2018/0171448 A1United Technologies Corporation
Most cited
By later US patents
- Gas turbine vanes and methods for making same68US 4,883,404 A1989
- Method for work-hardening by rolling a component33US 5,666,841 ASiemens Aktiengesellschaft · 1997
- Continuous curve high solidity hydrofoil impeller13US 5,326,226 APhiladelphia Mixers Corporation · 1994
- Impact composite blade12US 4,426,193 AThe United States of America as represented by the Secretary of the Air Force · 1984
- Variable blade manufacturing method and variable blade in VGS type turbo charger8US 7,089,664 B2Akita Fine Blanking Co., Ltd. · 2006