C22C 33/0271
With only c, mn, si, p, s, as as alloying elements
Official title: {with only C, Mn, Si, P, S, As as alloying elements, e.g. carbon steel}
C22C33/0271 (With only c, mn, si, p, s, as as alloying elements) appears on 39 US grants and 48 published applications in this corpus.
Search patents in C22C- Granted patents
- 39
- Published applications
- 48
- Assignees
- 39
- Inventors
- 124
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 2 | 2 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 4 |
| 2020 | 1 | 4 |
| 2021 | 3 | 5 |
| 2022 | 2 | 0 |
| 2023 | 3 | 0 |
| 2024 | 1 | 2 |
| 2025 | 6 | 11 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Low-sulfur granulated metallic units, and associated systems, devices, and methods14 May 2026US 2026/0131376 A1Suncoke Technology and Development LLC
- Treating cooling water in iron production facilities, and associated systems, devices, and methods26 Feb 2026US 2026/0054312 A1Suncoke Technology and Development LLC
- Low-carbon granulated metallic units, and associated systems, devices, and methods19 Feb 2026US 2026/0048434 A1Suncoke Technology and Development LLC
- Use of residual iron within granulated metallic unit production facilities, and associated systems, devices, and methods5 Feb 2026US 2026/0034581 A1Suncoke Technology and Development LLC
- Continuous granulated metallic units production, and associated systems, devices, and methods1 Jan 2026US 2026/0001124 A1Suncoke Technology and Development LLC
Most cited
By later US patents
- Powder metal alloy process37US 5,476,632 AStackpole Limited · 1995
- Powder mixture containing talloil free of segregation28US 4,676,831 AHöganäs AB · 1987
- Steel ballistic shot and production method17US 6,258,316 B1Olin Corporation · 2001
- Powder metallurgy process for producing steel articles16US 4,693,864 ADonald W. Lloyd Realty, Inc. · 1987
- Hi-density forming process15US 5,754,937 AStackpole Limited · 1998