C22C 38/56
With more than 1.7% by weight of carbon
Official title: with more than 1.7% by weight of carbon
C22C38/56 (With more than 1.7% by weight of carbon) appears on 87 US grants and 126 published applications in this corpus.
Search patents in C22C- Granted patents
- 87
- Published applications
- 126
- Assignees
- 77
- Inventors
- 264
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 0 | 2 |
| 2004 | 3 | 2 |
| 2005 | 2 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 5 |
| 2011 | 2 | 3 |
| 2012 | 1 | 0 |
| 2013 | 1 | 5 |
| 2014 | 2 | 6 |
| 2015 | 4 | 15 |
| 2016 | 8 | 18 |
| 2017 | 7 | 10 |
| 2018 | 5 | 5 |
| 2019 | 8 | 11 |
| 2020 | 7 | 7 |
| 2021 | 4 | 5 |
| 2022 | 9 | 4 |
| 2023 | 3 | 9 |
| 2024 | 5 | 4 |
| 2025 | 2 | 2 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Forged grinding balls for semi-autogenous grinder16 Jun 2026US 12,655,493 B2Magotteaux International S.A.
- Metal powder for additive manufacturing12 May 2026US 12,624,432 B2ArcelorMittal
- Fe—Mn—Al—C lightweight steel, production method thereof, terminal, steel mechanical part, and electronic device5 May 2026US 12,618,127 B2Huawei Technologies Co., Ltd.
- Hot dip galvannealed steel sheet27 Jan 2026US 12,534,790 B2Nippon Steel Corporation
- Cast iron, in particular for components of disc brakes18 Nov 2025US 12,473,617 B2Brembo S.p.A.
- Metal powder24 Sep 2026US 2026/0286477 A1Daido Steel Co., Ltd.
- Hot rolled steel sheet9 Jul 2026US 2026/0193755 A1Nippon Steel Corporation
- Nano-precipitate reinforced ultra-high-strength steel and manufacturing method therefor9 Jul 2026US 2026/0193762 A1Baoshan Iron & Steel Co., Ltd.
- Steel material3 Jul 2025US 2025/0215544 A1Nippon Steel Corporation
- Iron-Based Heat and Corrosion Resistant Alloy With Enhanced Air Quenchability12 Jun 2025US 2025/0188582 A1L. E. Jones Company
Most cited
By later US patents
- Wear resistant alloy containing residual austenite for valve seat insert46US 6,916,444 B1Alloy Technology Solutions, Inc. · 2005
- Iron-based alloys and methods of making and use thereof42US 9,334,547 B2L. E. Jones Company · 2016
- Wear resistant alloy for valve seat insert used in internal combustion engines41US 7,611,590 B2Alloy Technology Solutions, Inc. · 2009
- Corrosion and wear resistant iron based alloy useful for internal combustion engine valve seat inserts and method of making and use thereof40US 8,940,110 B2L. E. Jones Company · 2015
- Iron-based alloys and methods of making and use thereof38US 9,458,743 B2L. E. Jones Company · 2016