C21D 9/563
Rolls
Official title: {Rolls; Drums; Roll arrangements}
C21D9/563 (Rolls) appears on 73 US grants and 56 published applications in this corpus.
Search patents in C21D- Granted patents
- 73
- Published applications
- 56
- Assignees
- 61
- Inventors
- 194
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 5 |
| 2003 | 0 | 1 |
| 2004 | 5 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 2 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 3 |
| 2017 | 0 | 5 |
| 2018 | 2 | 2 |
| 2019 | 6 | 3 |
| 2020 | 1 | 4 |
| 2021 | 4 | 7 |
| 2022 | 2 | 3 |
| 2023 | 4 | 4 |
| 2024 | 3 | 4 |
| 2025 | 3 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Steel sheet, member, and methods for producing the same26 May 2026US 12,637,730 B2Jfe Steel Corporation
- Hearth roll for continuous annealing furnace18 Nov 2025US 12,473,606 B2Nippon Steel Corporation
- Hearth roll for continuous annealing furnace27 May 2025US 12,312,646 B2Nippon Steel Corporation
- High-resistance steel strip comprising a temperature homogenisation chamber25 Mar 2025US 12,258,649 B2Drever International S.A.
- Alloy ribbon and magnetic core3 Dec 2024US 12,159,743 B2TDK Corporation
- Hearth roll for continuous annealing furnace18 Jun 2026US 2026/0168046 A1Nippon Steel Corporation
- Annealing facility, and method for manufacturing grain-oriented electromagnetic steel sheet5 Feb 2026US 2026/0035762 A1Jfe Steel Corporation
- Cooling device and heat treatment apparatus including the same11 Sep 2025US 2025/0281957 A1Noritake Co., Limited
- Hearth roll for continuous annealing furnace14 Aug 2025US 2025/0257417 A1Nippon Steel Corporation
- Metal plate, method for manufacturing metal plate, and method for manufacturing metal mask10 Jul 2025US 2025/0222500 A1Dai Nippon Printing Co.Ltd.
Most cited
By later US patents
- Hearth roll21US 5,466,208 APraxair S. T. Technology, Inc. · 1995
- Powder feed composition for forming a refraction oxide coating, process used and article so produced15US 5,304,519 APraxair S. T. Technology, Inc. · 1994
- Apparatus for supporting and removing a work supporting roll10US 4,049,372 AAllegheny Ludlum Industries, Inc. · 1977
- Process for forming a refractory oxide coating9US 5,418,015 APraxair S. T. Technology, Inc. · 1995
- Method for making a multicast roll9US 5,713,408 AAlphatech, Inc. · 1998