B21H 1/18
Cylinders
Official title: cylinders, e.g. rolled transversely {cross-rolling}
B21H1/18 (Cylinders) appears on 94 US grants and 79 published applications in this corpus.
Search patents in B21H- Granted patents
- 94
- Published applications
- 79
- Assignees
- 76
- Inventors
- 224
- Latest grant
- 15 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 3 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 3 | 4 |
| 2008 | 1 | 1 |
| 2009 | 2 | 7 |
| 2010 | 0 | 3 |
| 2011 | 1 | 1 |
| 2012 | 3 | 2 |
| 2013 | 1 | 6 |
| 2014 | 4 | 2 |
| 2015 | 4 | 5 |
| 2016 | 3 | 2 |
| 2017 | 3 | 7 |
| 2018 | 3 | 6 |
| 2019 | 2 | 6 |
| 2020 | 7 | 5 |
| 2021 | 7 | 5 |
| 2022 | 5 | 7 |
| 2023 | 3 | 0 |
| 2024 | 2 | 1 |
| 2025 | 3 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Metallic tubular products with enhanced collapse resistance15 Jul 2025US 12,358,038 B2United States Steel Corporation
- Stretch rolling device and stretch rolling method11 Mar 2025US 12,246,370 B2SMS group GmbH
- Spinning device and spinning method7 Jan 2025US 12,186,793 B2Nihon Spindle Manufacturing Co., Ltd.
- Apparatus and method for profiling workpieces by cold forming31 Dec 2024US 12,179,254 B2Ernst Grob AG
- Cams for pipe grooving device6 Aug 2024US 12,055,203 B2Victaulic Company
- Cross wedge rolling mechanism, device and method for rolling laminated shaft19 Mar 2026US 2026/0077397 A1Ningbo University
- Device for Machining, in Particular for Deep-Rolling, Shafts8 Jan 2026US 2026/0008108 A1Hegenscheidt-MFD GmbH & Co. KG
- Magnesium alloy molded article and molding device thereof27 Feb 2025US 2025/0065390 A1Massive Lab Inc.
- Device and method for the cold-forming profiling of workpieces8 Aug 2024US 2024/0261840 A1Ernst Grob AG
- Spinning device and spinning method8 Dec 2022US 2022/0388050 A1Nihon Spindle Manufacturing Co., Ltd.
Most cited
By later US patents
- Ring rolling machine21US 4,173,877 AThyssen Industrie AG · 1979
- Continuous backpass rolling mill21US 4,793,169 AUnited Engineering, Inc. · 1988
- Hardened steel pin, pin and washer fastener, washer for fastener, and pin-making method14US 6,171,042 B2Illinois Tool Works Inc. · 2001
- Mill for transverse rolling13US 4,455,854 AFiziko-Tekhnichesky Institut Akademii Nauk Belorusskoi SSR · 1984
- Pipe grooving device12US 10,960,450 B2Victaulic Company · 2021