B21K 3/04
Blades
Official title: blades, e.g. for turbines; Upsetting of blade roots
B21K3/04 (Blades) appears on 104 US grants and 117 published applications in this corpus.
Search patents in B21K- Granted patents
- 104
- Published applications
- 117
- Assignees
- 68
- Inventors
- 271
- Latest grant
- 1 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 2 | 6 |
| 2005 | 0 | 7 |
| 2006 | 4 | 3 |
| 2007 | 1 | 3 |
| 2008 | 3 | 0 |
| 2009 | 5 | 6 |
| 2010 | 0 | 3 |
| 2011 | 0 | 5 |
| 2012 | 1 | 6 |
| 2013 | 6 | 18 |
| 2014 | 6 | 8 |
| 2015 | 9 | 5 |
| 2016 | 9 | 14 |
| 2017 | 6 | 3 |
| 2018 | 9 | 7 |
| 2019 | 7 | 4 |
| 2020 | 4 | 4 |
| 2021 | 4 | 2 |
| 2022 | 3 | 5 |
| 2023 | 2 | 1 |
| 2024 | 4 | 2 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Titanium alloys and their methods of production1 Oct 2024US 12,104,239 B2General Electric Company
- Core for high-temperature shaping of a metal part and manufacturing, regeneration and shaping process30 Apr 2024US 11,970,955 B2Safran Aircraft Engines
- Controlled microstructure for superalloy components9 Apr 2024US 11,951,528 B2Rolls-Royce North American Technologies Inc.
- Forging device and method for manufacturing forged product30 Jan 2024US 11,883,875 B2Proterial, Ltd.
- Wrought root blade manufacture methods3 Oct 2023US 11,773,724 B2Rtx Corporation
- High-efficiency short-process superplastic forming method for tc4 titanium alloy fan blisk forging11 Jun 2026US 2026/0158541 A1Baowu Special Metallurgy Co., Ltd.
- Distortion-free manufacturing of large titanium integrally bladed rotors16 Apr 2026US 2026/0102860 A1Rtx Corporation
- Titanium alloys and their methods of production26 Dec 2024US 2024/0425961 A1General Electric Company
- Process used to shape items of equipment comprising a blade18 Jul 2024US 2024/0242335 A1Lisi Aerospace
- Titanium alloys and their methods of production7 Dec 2023US 2023/0392247 A1General Electric Company
Most cited
By later US patents
- Method for producing titanium alloy turbine blades and titanium alloy turbine blades69US 6,127,044 ABoehler Schmiedetechnik Gesellschaft mit beschrankter Haftung & Company Kommandit Gesellschaft · 2000
- Metal forming methods57US 4,188,811 AChem-tronics, Inc. · 1980
- Method of making a row of mix-tuned turbomachine blades57US 5,524,341 AWestinghouse Electric Corp. · 1996
- Integrally bladed rotor fabrication53US 5,113,583 AUnited Technologies Corporation · 1992
- Thin parts made of β or quasi-β titanium alloys; manufacture by forging29US 7,037,389 B2Snecma Moteurs · 2006