B21B 27/03
Sleeved rolls
Official title: Sleeved rolls {(B21B27/028 takes precedence)}
B21B27/03 (Sleeved rolls) appears on 302 US grants and 124 published applications in this corpus.
Search patents in B21B- Granted patents
- 302
- Published applications
- 124
- Assignees
- 143
- Inventors
- 519
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 10 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 8 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 15 | 0 |
| 1990 | 11 | 0 |
| 1991 | 8 | 0 |
| 1992 | 10 | 0 |
| 1993 | 12 | 0 |
| 1994 | 6 | 0 |
| 1995 | 10 | 0 |
| 1996 | 12 | 0 |
| 1997 | 7 | 0 |
| 1998 | 11 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 5 |
| 2002 | 10 | 5 |
| 2003 | 5 | 6 |
| 2004 | 2 | 9 |
| 2005 | 5 | 3 |
| 2006 | 3 | 6 |
| 2007 | 2 | 2 |
| 2008 | 2 | 4 |
| 2009 | 3 | 7 |
| 2010 | 1 | 6 |
| 2011 | 1 | 1 |
| 2012 | 2 | 2 |
| 2013 | 2 | 1 |
| 2014 | 4 | 5 |
| 2015 | 2 | 7 |
| 2016 | 5 | 5 |
| 2017 | 9 | 9 |
| 2018 | 6 | 6 |
| 2019 | 3 | 3 |
| 2020 | 4 | 1 |
| 2021 | 6 | 8 |
| 2022 | 5 | 3 |
| 2023 | 4 | 10 |
| 2024 | 3 | 7 |
| 2025 | 2 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydraulic devices including coated surfaces25 Aug 2026US 12,716,119 B2Maxterial, Inc.
- Rollers and work rolls including surface coatings6 Jan 2026US 12,516,403 B2Maxterial, Inc.
- Rolling mechanism, skew rolling mill and method for rolling ultrafine-grained M50NiL rod16 Sep 2025US 12,415,214 B2Anhui Dongyun Intelligent Rolling Equipment Co., Ltd.
- Pneumatic devices including surface coatings15 Jul 2025US 12,359,289 B2Maxterial, Inc.
- Hydraulic devices including coated surfaces10 Dec 2024US 12,163,208 B2Maxterial, Inc.
- Pneumatic devices including surface coatings9 Jul 2026US 2026/0193747 A1Maxterial, Inc.
- Hydraulic devices including coated surfaces21 Aug 2025US 2025/0263820 A1Maxterial, Inc.
- Roller and rolling apparatus1 May 2025US 2025/0135516 A1Jiangsu Contemporary Amperex Technology Limited
- Processes for producing coated surfaces, coatings and articles using them12 Dec 2024US 2024/0410072 A1Maxterial, Inc.
- Articles including surface coatings on external surfaces, internal surfaces or both12 Dec 2024US 2024/0410073 A1Maxterial, Inc.
Most cited
By later US patents
- Roll bite gauge and profile measurement system for rolling mills46US 4,898,012 AUnited Engineering, Inc. · 1990
- Pressure roll for use in calenders or the like43US 4,520,723 AKleinewefers GmbH · 1985
- Apparatus to mechanically stress a bolt-type fastener39US 4,622,730 A1986
- Rotary cutting dies37US 5,417,132 A1995
- Structure for preventing escape of jack bolts in apparatus to mechanically stress a bolt-type fastener36US 5,083,889 A1992