B21B 35/025
For stretch-reducing of tubes
Official title: {for stretch-reducing of tubes}
B21B35/025 (For stretch-reducing of tubes) appears on 9 US grants and 3 published applications in this corpus.
Search patents in B21B- Granted patents
- 9
- Published applications
- 3
- Assignees
- 7
- Inventors
- 16
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reducer and/or calibrating rolling mill for rod-shaped bodies21 Apr 2026US 12,605,754 B2Danieli & C. Officine Meccaniche SpA
- Stretch reduction mill10 Oct 2000US 6,128,934 ALone Star Technologies, Inc.
- Stretch-reducing mill for rolling tubes14 Jul 1992US 5,129,250 AInnse Innocenti Santeustacchio S.p.A.
- Transmission for driving the rolls of a rolling line18 Jul 1989US 4,848,185 AKocks Technik GmbH & Co.
- Rolling line for the stretch-reducing of tubes6 Sep 1988US 4,768,370 AKocks Technik GmbH & Co.
- Rolling mill20 Nov 2025US 2025/0353062 A1
- Reducer and/or calibrating rolling mill for rod-shaped bodies4 Jan 2024US 2024/0001419 A1Danieli & C. Officine Meccaniche SpA
- Multi-stand rolling mill for rod-shaped bodies comprising three motorized-rollers stands25 Oct 2018US 2018/0304327 A1Danieli & C. Officine Meccaniche SpA
Most cited
By later US patents
- Bevel gear differential drives and methods for adjusting their tooth engagement5US 4,414,859 AKocks Technik GmbH & Co. · 1983
- Rolling mills4US 4,000,637 AFirma Friedrich Kocks · 1977
- Transmission for driving the rolls of a rolling line4US 4,848,185 AKocks Technik GmbH & Co. · 1989
- Device for controlling the rotation of the working rollers in a tube rolling mill3US 4,212,180 AInnocenti Santeustacchio S.p.A. · 1980
- Rolling mills3US 4,388,819 AKocks Technik GmbH & Co. · 1983