C22C 33/08
Making cast-iron alloys
C22C33/08 (Making cast-iron alloys) appears on 155 US grants and 163 published applications in this corpus.
Search patents in C22C- Granted patents
- 155
- Published applications
- 163
- Assignees
- 126
- Inventors
- 411
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 4 |
| 2003 | 7 | 8 |
| 2004 | 1 | 8 |
| 2005 | 4 | 3 |
| 2006 | 4 | 7 |
| 2007 | 2 | 0 |
| 2008 | 1 | 3 |
| 2009 | 3 | 1 |
| 2010 | 1 | 3 |
| 2011 | 0 | 5 |
| 2012 | 1 | 7 |
| 2013 | 3 | 10 |
| 2014 | 3 | 11 |
| 2015 | 4 | 13 |
| 2016 | 6 | 11 |
| 2017 | 10 | 9 |
| 2018 | 7 | 3 |
| 2019 | 3 | 12 |
| 2020 | 6 | 11 |
| 2021 | 4 | 5 |
| 2022 | 12 | 12 |
| 2023 | 7 | 5 |
| 2024 | 7 | 5 |
| 2025 | 4 | 2 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ferrosilicon vanadium and/or niobium alloy, production of a ferrosilicon vanadium and/or niobium alloy, and the use thereof6 Oct 2026US 12,753,470 B2Elkem ASA
- Tough and corrosion resistant white cast irons3 Feb 2026US 12,540,364 B2Weir Minerals Australia Ltd.
- Spheroidal graphite cast iron, cast article and automobile structure part made thereof, and method for producing spheroidal graphite cast iron article13 Jan 2026US 12,522,901 B2Proterial, Ltd.
- Wear resistant composite12 Aug 2025US 12,385,119 B2Conv Australia Holding Pty Ltd
- Vermicular cast iron alloy, combustion engine block and head5 Aug 2025US 12,378,646 B2Tupy S. A.
- Fine Grain Size and High Hardness Cast Steel Alloys Products and Method of Making the Same3 Sep 2026US 2026/0258530 A1
- Cast iron, in particular for components of disc brakes7 May 2026US 2026/0125782 A1Brembo S.p.A.
- Wear resistant composite7 May 2026US 2026/0125786 A1Conv Australia Holding Pty Ltd
- Cast iron comprising niobium particles and method for producing cast iron30 Apr 2026US 2026/0117348 A1Instituto HercíLio Randon
- High mechanical strength and high thermal conductivity vermicular cast iron alloy, high mechanical strength and high thermal conductivity vermicular cast iron alloy manufacturing process, and internal combustion engine part15 Jan 2026US 2026/0015698 A1Tupy S. A.
Most cited
By later US patents
- Method and a device for thermal analysis of cast iron475US 7,168,852 B2SinterCast AB · 2007
- Machinable austempered cast iron article having improved machinability, fatigue performance, and resistance to environmental cracking and a method of making the same44US 7,070,666 B2Intermet Corporation · 2006
- Hypereutectic white iron alloys comprising chromium and nitrogen and articles made therefrom37US 9,284,631 B22016
- Alloys for hardbanding weld overlays26US 8,647,449 B2Scoperta, Inc. · 2014
- Cast iron inoculant and method for production of cast iron inoculant25US 6,102,983 AElkem ASA · 2000