B21B 27/02
Shape or construction of rolls
Official title: Shape or construction of rolls (for rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects B21H8/02 {; B21B27/005 takes precedence})
B21B27/02 (Shape or construction of rolls) appears on 509 US grants and 316 published applications in this corpus.
Search patents in B21B- Granted patents
- 509
- Published applications
- 316
- Assignees
- 265
- Inventors
- 1,100
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 11 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 9 | 0 |
| 1985 | 13 | 0 |
| 1986 | 11 | 0 |
| 1987 | 12 | 0 |
| 1988 | 7 | 0 |
| 1989 | 21 | 0 |
| 1990 | 16 | 0 |
| 1991 | 10 | 0 |
| 1992 | 17 | 0 |
| 1993 | 13 | 0 |
| 1994 | 8 | 0 |
| 1995 | 12 | 0 |
| 1996 | 15 | 0 |
| 1997 | 12 | 0 |
| 1998 | 14 | 0 |
| 1999 | 10 | 0 |
| 2000 | 12 | 0 |
| 2001 | 16 | 5 |
| 2002 | 14 | 9 |
| 2003 | 5 | 10 |
| 2004 | 5 | 14 |
| 2005 | 7 | 8 |
| 2006 | 7 | 9 |
| 2007 | 3 | 8 |
| 2008 | 6 | 8 |
| 2009 | 6 | 11 |
| 2010 | 4 | 15 |
| 2011 | 2 | 8 |
| 2012 | 8 | 6 |
| 2013 | 8 | 8 |
| 2014 | 7 | 11 |
| 2015 | 8 | 27 |
| 2016 | 12 | 8 |
| 2017 | 24 | 24 |
| 2018 | 13 | 16 |
| 2019 | 10 | 15 |
| 2020 | 15 | 14 |
| 2021 | 12 | 17 |
| 2022 | 12 | 13 |
| 2023 | 9 | 21 |
| 2024 | 14 | 19 |
| 2025 | 11 | 6 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Forged steel roll for cold rolling6 Oct 2026US 12,752,325 B2Nippon Steel Corporation
- Hydraulic devices including coated surfaces25 Aug 2026US 12,716,119 B2Maxterial, Inc.
- Electro-plastic shape control roller system based on transverse partitioning and independent control30 Jun 2026US 12,667,876 B2Taiyuan University of Technology
- Method for manufacturing roll mold, roll mold manufacturing apparatus, non-transitory computer readable medium, microlens array, and roll mold23 Jun 2026US 12,661,715 B2Dexerials Corporation
- Wear-resistant member26 May 2026US 12,638,050 B2NGK Insulators, Ltd.
- Pneumatic devices including surface coatings9 Jul 2026US 2026/0193747 A1Maxterial, Inc.
- Roller for rolling electrode sheet comprising hard layer formed by physical vapor deposition and manufacturing method of the same4 Jun 2026US 2026/0151813 A1J&L Tech Co., Ltd.
- Wire roller, and wire roller assembly21 May 2026US 2026/0138166 A1MacLean-Fogg Company
- Pre-calendering system for reducing strain imbalances in multilane electrodes7 May 2026US 2026/0124655 A1Tesla, Inc.
- Asymmetric rolling apparatus and cassette device23 Apr 2026US 2026/0108927 A1Solum Advanced Materials Co., Ltd.
Most cited
By later US patents
- Rotary die cutting system and method for sheet material78US 5,388,490 A1995
- 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