B21B 45/02
Devices for surface or other treatment of work, specially combined with or
Official title: for lubricating, cooling, or cleaning {(in particular in combination with forging or pressing devices B21B15/005, control of flatness or profile using lubricating or cooling B21B37/44)}
B21B45/02 (Devices for surface or other treatment of work, specially combined with or) appears on 780 US grants and 553 published applications in this corpus.
Search patents in B21B- Granted patents
- 780
- Published applications
- 553
- Assignees
- 337
- Inventors
- 1,803
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 11 | 0 |
| 1978 | 9 | 0 |
| 1979 | 8 | 0 |
| 1980 | 16 | 0 |
| 1981 | 8 | 0 |
| 1982 | 8 | 0 |
| 1983 | 10 | 0 |
| 1984 | 16 | 0 |
| 1985 | 10 | 0 |
| 1986 | 15 | 0 |
| 1987 | 15 | 0 |
| 1988 | 10 | 0 |
| 1989 | 8 | 0 |
| 1990 | 14 | 0 |
| 1991 | 10 | 0 |
| 1992 | 8 | 0 |
| 1993 | 11 | 0 |
| 1994 | 11 | 0 |
| 1995 | 20 | 0 |
| 1996 | 14 | 0 |
| 1997 | 27 | 0 |
| 1998 | 28 | 0 |
| 1999 | 18 | 0 |
| 2000 | 20 | 0 |
| 2001 | 23 | 5 |
| 2002 | 14 | 14 |
| 2003 | 17 | 12 |
| 2004 | 10 | 17 |
| 2005 | 9 | 15 |
| 2006 | 12 | 13 |
| 2007 | 11 | 19 |
| 2008 | 8 | 23 |
| 2009 | 10 | 26 |
| 2010 | 14 | 26 |
| 2011 | 21 | 25 |
| 2012 | 16 | 29 |
| 2013 | 26 | 16 |
| 2014 | 15 | 28 |
| 2015 | 17 | 34 |
| 2016 | 21 | 32 |
| 2017 | 22 | 16 |
| 2018 | 16 | 20 |
| 2019 | 21 | 32 |
| 2020 | 23 | 35 |
| 2021 | 25 | 27 |
| 2022 | 23 | 22 |
| 2023 | 27 | 13 |
| 2024 | 13 | 27 |
| 2025 | 17 | 17 |
| 2026 | 12 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sub-ambient temperature transfer system for cold forming processes22 Sep 2026US 12,741,304 B2GM Global Technology Operations LLC
- Apparatus for removing foreign matter on hot-rolled steel strip18 Aug 2026US 12,708,931 B2Posco
- Wiping apparatus and rolling facility21 Jul 2026US 12,686,044 B2Primetals Technologies Japan, Ltd.
- Method and equipment for cooling on a reversing hot rolling mill26 May 2026US 12,636,691 B2Constellium Muscle Shoals LLC
- Cold rolling mill rolling condition setting method, cold rolling method, steel sheet manufacturing method, cold rolling mill rolling condition setting device, and cold rolling mill5 May 2026US 12,617,009 B2Jfe Steel Corporation
- Multiple-billet hot rolling plant with joint cooling system1 Oct 2026US 2026/0295647 A1Pomini Long Rolling Mills S.R.I.
- Squeezing roller having an internal drive for a cold rolling system10 Sep 2026US 2026/0264127 A1Primetals Technologies Austria GmbH
- Method and equipment for cooling on a reversing hot rolling mill3 Sep 2026US 2026/0257262 A1Constellium Muscle Shoals LLC
- Short-flow rolling device and method for seamless pipe27 Aug 2026US 2026/0249337 A1Changzhou Institute of Technology
- Reversible roughing mill for an aluminum or aluminum alloy product and related process13 Aug 2026US 2026/0233276 A1Danieli & C. Officine Meccaniche SpA
Most cited
By later US patents
- High-capacity wire rolling mill195US 5,946,783 ASMS Schloemann-Siemag Aktiengesellschaft · 1999
- Apparatus for scrubbing of hydrocarbons from gas48US 4,028,072 AAluminium Norf GmbH · 1977
- Separating-and-lubricating agent in solid form39US 4,575,430 ALonza Ltd. · 1986
- Method and apparatus for cooling rolling mill rolls and flat rolled products39US 5,212,975 AInternational Rolling Mill Consultants, Inc. · 1993
- Liquid removal device36US 4,477,287 AKaiser Aluminum & Chemical Corporation · 1984