C21D 7/08
By burnishing or the like
Official title: by burnishing or the like
C21D7/08 (By burnishing or the like) appears on 82 US grants and 109 published applications in this corpus.
Search patents in C21D- Granted patents
- 82
- Published applications
- 109
- Assignees
- 73
- Inventors
- 254
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 4 |
| 2006 | 1 | 3 |
| 2007 | 1 | 9 |
| 2008 | 1 | 9 |
| 2009 | 2 | 2 |
| 2010 | 5 | 6 |
| 2011 | 5 | 3 |
| 2012 | 4 | 5 |
| 2013 | 5 | 6 |
| 2014 | 3 | 3 |
| 2015 | 1 | 12 |
| 2016 | 4 | 8 |
| 2017 | 8 | 7 |
| 2018 | 9 | 7 |
| 2019 | 3 | 4 |
| 2020 | 5 | 5 |
| 2021 | 2 | 2 |
| 2022 | 2 | 1 |
| 2023 | 2 | 3 |
| 2024 | 5 | 4 |
| 2025 | 2 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing a steel part and corresponding steel part28 Oct 2025US 12,454,744 B2ArcelorMittal
- Metal product surface member and method for burnishing same18 Mar 2025US 12,251,791 B2Fuji Kihan Co., Ltd.
- Double-sided ultrasonic rolling cooperative strengthening system and control method thereof26 Nov 2024US 12,151,325 B2East China University of Science and Technology
- Composite plate, composite plate roughening device, and method for manufacturing composite plate26 Nov 2024US 12,151,451 B2Jiangsu Kangrui New Material Technology Co., Ltd.
- Method for making a metal material composite10 Sep 2024US 12,083,567 B2Jiangsu Kangrui New Material Technology Co., Ltd.
- Steel sheet and method for producing same6 Aug 2026US 2026/0226573 A1Nippon Steel Corporation
- Method for multi-field coupling strengthening of an ice skate blade edge29 Jan 2026US 2026/0027609 A1Avic Manufacturing Technology Institute
- Mechanical surface treating component with spherical roller7 Aug 2025US 2025/0249540 A1Rtx Corporation
- Surface treating component with vibration assisted rolling tool31 Jul 2025US 2025/0242396 A1Rtx Corporation
- Double-sided ultrasonic rolling cooperative strengthening system and control method thereof3 Oct 2024US 2024/0326182 A1East China University of Science and Technology
Most cited
By later US patents
- Apparatus and method for forming weld joints having compressive residual stress patterns135US 6,926,970 B2Lambda Research, Inc. · 2005
- Burnishing method and apparatus for providing a layer of compressive residual stress in the surface of a workpiece56US 5,826,453 ALambda Research, Inc. · 1998
- Method for reducing tensile stress zones in the surface of a part48US 6,622,570 B1Surface Technology Holdings, Ltd. · 2003
- Method and apparatus for providing a residual stress distribution in the surface of a part27US 6,415,486 B1Surface Technology Holdings, Ltd. · 2002
- Manufacturing method of disk for belt-driven continuously-variable-speed drive26US 4,947,533 ASuzuki Jidosha Kogyo Kabushiki Kaisha · 1990