C22C 37/00
Cast-iron alloys
C22C37/00 (Cast-iron alloys) appears on 391 US grants and 436 published applications in this corpus.
Search patents in C22C- Granted patents
- 391
- Published applications
- 436
- Assignees
- 330
- Inventors
- 1,103
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 8 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 10 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 2 |
| 2002 | 4 | 7 |
| 2003 | 11 | 8 |
| 2004 | 7 | 16 |
| 2005 | 7 | 7 |
| 2006 | 4 | 13 |
| 2007 | 2 | 5 |
| 2008 | 2 | 14 |
| 2009 | 3 | 14 |
| 2010 | 7 | 20 |
| 2011 | 2 | 25 |
| 2012 | 13 | 14 |
| 2013 | 10 | 25 |
| 2014 | 9 | 27 |
| 2015 | 19 | 36 |
| 2016 | 13 | 26 |
| 2017 | 26 | 26 |
| 2018 | 16 | 17 |
| 2019 | 14 | 31 |
| 2020 | 15 | 16 |
| 2021 | 17 | 15 |
| 2022 | 17 | 24 |
| 2023 | 17 | 15 |
| 2024 | 14 | 8 |
| 2025 | 9 | 12 |
| 2026 | 4 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Iron alloy material for casting and iron casting11 Aug 2026US 12,703,902 B2Hinode, Ltd.
- Lightweight brake disc with maximized heat dissipation performance and manufacturing method thereof30 Jun 2026US 12,669,156 B2Pukyong National University Industry-University Cooperation Foundation
- 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.
- Cast iron, in particular for components of disc brakes18 Nov 2025US 12,473,617 B2Brembo S.p.A.
- 3d printed metal with controlled carbide size and method of producing the same1 Oct 2026US 2026/0295676 A1VBN Components AB
- Metal powder24 Sep 2026US 2026/0286476 A1Daido Steel Co., Ltd.
- Metal powder24 Sep 2026US 2026/0286477 A1Daido Steel Co., Ltd.
- Fine Grain Size and High Hardness Cast Steel Alloys Products and Method of Making the Same3 Sep 2026US 2026/0258530 A1
- Hydrogen application with collector unit30 Jul 2026US 2026/0218672 A1Anglo Belgian Corporation NV
Most cited
By later US patents
- Abrasion-resistant refrigeration-hardenable white cast iron108US 3,941,589 AAmax Inc. · 1976
- Nickel-iron base wear resistant alloy54US 6,200,688 B1Winsert, Inc. · 2001
- Lapping tools52US 5,041,173 AKabushiki Kaisha Toshiba · 1991
- 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
- Iron-based alloys and methods of making and use thereof42US 9,334,547 B2L. E. Jones Company · 2016