B23P 9/04
Treating or finishing by hammering or applying repeated pressure
B23P9/04 (Treating or finishing by hammering or applying repeated pressure) appears on 97 US grants and 116 published applications in this corpus.
Search patents in B23P- Granted patents
- 97
- Published applications
- 116
- Assignees
- 68
- Inventors
- 309
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 6 |
| 2003 | 1 | 5 |
| 2004 | 5 | 2 |
| 2005 | 2 | 3 |
| 2006 | 5 | 2 |
| 2007 | 0 | 5 |
| 2008 | 2 | 2 |
| 2009 | 2 | 5 |
| 2010 | 1 | 3 |
| 2011 | 0 | 9 |
| 2012 | 3 | 0 |
| 2013 | 6 | 6 |
| 2014 | 5 | 2 |
| 2015 | 3 | 5 |
| 2016 | 1 | 1 |
| 2017 | 4 | 1 |
| 2018 | 3 | 5 |
| 2019 | 1 | 5 |
| 2020 | 4 | 10 |
| 2021 | 6 | 10 |
| 2022 | 3 | 7 |
| 2023 | 5 | 3 |
| 2024 | 8 | 6 |
| 2025 | 4 | 9 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cavitation surface processing nozzle and cavitation surface processing apparatus13 Jan 2026US 12,521,824 B2Sugino Machine Limited
- Processing method and processing apparatus for workpiece4 Nov 2025US 12,459,077 B2Sintokogio, Ltd.
- Method of treating a cutting tool, and a cutting tool23 Sep 2025US 12,420,340 B2AB Sandvik Coromant
- Needle-peening method20 May 2025US 12,305,246 B2Jfe Steel Corporation
- Hammer assembly for a power tool4 Mar 2025US 12,240,092 B1
- Vibration-chiseling machining method11 Jun 2026US 2026/0158570 A1Tsinghua University
- Peening system for inner surface of hollow spiral extension member and method for peening of hollow spiral extension member using the same30 Apr 2026US 2026/0115864 A1Industry-Academic Cooperation Foundation, Dankook University
- Method for multi-field coupling strengthening of an ice skate blade edge29 Jan 2026US 2026/0027609 A1Avic Manufacturing Technology Institute
- Cavitation surface processing nozzle and cavitation surface processing apparatus13 Nov 2025US 2025/0345887 A1Sugino Machine Limited
- Method of treating a cutting tool and a cutting tool7 Aug 2025US 2025/0249515 A1AB Sandvik Coromant
Most cited
By later US patents
- Apparatus for processing welded joint parts of pipes109US 4,491,001 AKawasaki Jukogyo Kabushiki Kaisha · 1985
- Apparatus for surface treatment by impact104US 6,343,495 B12002
- Ultrasonic impact methods for treatment of welded structures76US 6,338,765 B12002
- Ultrasonic impact machining of body surfaces to correct defects and strengthen work surfaces72US 6,932,876 B1U.I.T., L.L.C. · 2005
- Ultrasonic impact methods for treatment of welded structures38US 6,843,957 B2U.I.T., L.L.C. · 2005