B21H 1/06
Rings of restricted axial length
Official title: rings of restricted axial length (extending closed shapes of metal bands by simultaneous rolling at two or more zones B21B5/00)
B21H1/06 (Rings of restricted axial length) appears on 176 US grants and 116 published applications in this corpus.
Search patents in B21H- Granted patents
- 176
- Published applications
- 116
- Assignees
- 109
- Inventors
- 394
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 5 |
| 2003 | 8 | 3 |
| 2004 | 2 | 5 |
| 2005 | 3 | 1 |
| 2006 | 1 | 5 |
| 2007 | 3 | 0 |
| 2008 | 0 | 4 |
| 2009 | 2 | 4 |
| 2010 | 0 | 6 |
| 2011 | 0 | 4 |
| 2012 | 3 | 0 |
| 2013 | 3 | 5 |
| 2014 | 4 | 2 |
| 2015 | 0 | 4 |
| 2016 | 0 | 10 |
| 2017 | 5 | 10 |
| 2018 | 6 | 6 |
| 2019 | 10 | 8 |
| 2020 | 8 | 9 |
| 2021 | 10 | 0 |
| 2022 | 3 | 7 |
| 2023 | 3 | 6 |
| 2024 | 5 | 6 |
| 2025 | 4 | 3 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vehicle wheel rim, vehicle wheel including such a wheel rim and method for producing such a wheel rim and vehicle wheel25 Aug 2026US 12,715,242 B2Maxion Wheels Holding GmbH
- Vehicle wheel rim, vehicle wheel including such a wheel rim and method for producing such a wheel rim and vehicle wheel25 Aug 2026US 12,715,243 B2Maxion Wheels Holding GmbH
- Method for rolling a ring-shaped rolling product having an open cylindrical cross section in a ring rolling machine, and ring rolling machine for carrying out the method28 Jul 2026US 12,691,491 B2SMS group GmbH
- Ring-rolling mill and method for operating same16 Jun 2026US 12,654,220 B2SMS group GmbH
- Production method for ring-rolled material of Fe—Ni-based superalloy7 Apr 2026US 12,594,593 B2Proterial, Ltd.
- Method for rolling a ring-shaped rolling product having an open cylindrical cross section in a ring rolling machine, and ring rolling machine for carrying out the method1 Oct 2026US 2026/0295653 A1SMS group GmbH
- Rolling apparatus for annular workpiece22 Jan 2026US 2026/0021522 A1
- Manufacturing method of track race of tripod constant velocity joint23 Oct 2025US 2025/0327485 A1Erae Ams Co., Ltd.
- Circular rolling mill and rolling method using such a rolling mill2 Oct 2025US 2025/0303456 A1Ecai
- Method of making an interaxle differential unit and an annular case28 Aug 2025US 2025/0271053 A1ArvinMeritor Technology, LLC
Most cited
By later US patents
- Isothermal metal forming apparatus89US 3,988,913 AInternational Harvester Company · 1976
- Rotary forging and quenching apparatus and method48US 6,539,765 B22003
- Ring rolling methods and apparatus39US 4,150,279 AInternational Harvester Company · 1979
- Method for the controlled mechanical working of sintered porous powder metal shapes to effect surface and subsurface densification38US 4,059,879 ATextron Inc. · 1977
- Method of making double-walled turbine components from pre-consolidated assemblies34US 5,933,699 AGeneral Electric Company · 1999