C21D 5/02
Improving the malleability of grey cast-iron
Official title: improving the malleability of grey cast-iron
C21D5/02 (Improving the malleability of grey cast-iron) appears on 13 US grants and 8 published applications in this corpus.
Search patents in C21D- Granted patents
- 13
- Published applications
- 8
- Assignees
- 13
- Inventors
- 33
- Latest grant
- 2 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 2 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Spheroidal graphite cast iron and method of producing spheroidal graphite cast iron, and vehicle undercarriage parts2 Apr 2024US 11,946,109 B2Riken
- Inoculant with surface particles16 Jul 2019US 10,351,920 B2Perropem
- High modulus wear resistant gray cast iron for piston ring applications19 Apr 2016US 9,316,313 B2Federal-Mogul Corporation
- High modulus wear resistant gray cast iron for piston ring applications28 Jul 2015US 9,091,345 B2Federal-Mogul Corporation
- Method for manufacturing spheroidal cast iron mechanical components11 Dec 2012US 8,328,965 B2Zanardi Fonderie S.P.A.
- Spheroidal graphite cast iron and method of producing spheroidal graphite cast iron, and vehicle undercarriage parts7 Jul 2022US 2022/0213568 A1Riken
- Inoculant with surface particles18 Feb 2016US 2016/0047008 A1Ferropem
- High modulus wear resistant gray cast iron for piston ring applications8 Oct 2015US 2015/0285378 A1Federal-Mogul Corporation
- High modulus wear resistant gray cast iron for piston ring applications30 May 2013US 2013/0134680 A1Federal-Mogul Corporation
- Ledeburite cast iron with a high carbide content and an evenly distributed graphite embodiment28 Apr 2011US 2011/0094632 A1Federal-Mogul Friedberg GmbH
Most cited
By later US patents
- Method of making CG iron16US 4,596,606 AFord Motor Company · 1986
- Class of ductile iron, and process of forming same9US 5,522,949 AIndustrial Materials Technology, Inc. · 1996
- Thin high-strength article of spheroidal graphite cast iron and method of producing same8US 4,990,194 AHitachi Metals, Ltd. · 1991
- Method of preparing high nodule malleable iron and its named product3US 6,024,804 AOhio Cast Products, Inc. · 2000
- Nodular cast iron alloy3US 6,861,029 B2Georg Fischer Fahrzeugtechnik AG · 2005