C21D 2211/006
Graphite
C21D2211/006 (Graphite) appears on 20 US grants and 22 published applications in this corpus.
Search patents in C21D- Granted patents
- 20
- Published applications
- 22
- Assignees
- 25
- Inventors
- 88
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 2 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 5 |
By publication year. Applications have been published since 2001.
Recent patents
- Wire rod for graphitization heat treatment, graphite steel, and manufacturing method therefor8 Jul 2025US 12,351,885 B2Posco
- High rigid spheroidal graphite cast iron18 Aug 2020US 10,745,784 B2Riken
- Inoculant with surface particles16 Jul 2019US 10,351,920 B2Perropem
- Spheroidal graphite cast iron having excellent strength and toughness and its production method2 Oct 2018US 10,087,509 B2Hitachi Metals, Ltd.
- Method for manufacturing machined part, and machined part10 Jan 2017US 9,539,675 B2Toyota Jidosha Kabushiki Kaisha
- Systems and methods for improving iron-based camshaft fatigue life27 Nov 2025US 2025/0360557 A1Cummins Inc.
- Grey cast iron, in particular for disc brake components6 Mar 2025US 2025/0075299 A1Brembo S.p.A.
- Grey cast iron, in particular for disc brake components20 Feb 2025US 2025/0059634 A1
- Graphite steel wire rod and graphite steel for tv pem nut parts, methods for manufacturing and cutting therefor30 Jan 2025US 2025/0034672 A1Posco
- Calcium-containing graphite steel having excellent machinability, and manufacturing method therefor16 Jan 2025US 2025/0019790 A1Posco
Most cited
By later US patents
- Toothed wheel for use in automobiles and its manufacturing method42US 5,310,432 AKubota Iron Works Co., Ltd. · 1994
- Iron-graphite composite powders and sintered articles produced therefrom10US 6,358,298 B1Quebec Metal Powders Limited · 2002
- Class of ductile iron, and process of forming same9US 5,522,949 AIndustrial Materials Technology, Inc. · 1996
- Casting material for thixocasting, method for preparing partially solidified casting material for thixocasting, thixo-casting method, iron-base cast, and method for heat-treating iron-base cast8US 6,136,101 AHonda Giken Kogyo Kabushiki Kaisha · 2000
- Graphitic steel compositions7US 5,478,523 AThe Timken Company · 1995