B21J 5/10
Piercing billets
Official title: Piercing billets (in combination with extrusion B21C23/00)
B21J5/10 (Piercing billets) appears on 56 US grants and 58 published applications in this corpus.
Search patents in B21J- Granted patents
- 56
- Published applications
- 58
- Assignees
- 43
- Inventors
- 149
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 0 | 5 |
| 2006 | 2 | 2 |
| 2007 | 3 | 5 |
| 2008 | 3 | 3 |
| 2009 | 2 | 2 |
| 2010 | 1 | 4 |
| 2011 | 3 | 2 |
| 2012 | 3 | 2 |
| 2013 | 4 | 3 |
| 2014 | 1 | 2 |
| 2015 | 2 | 4 |
| 2016 | 3 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 3 |
| 2019 | 2 | 1 |
| 2020 | 2 | 3 |
| 2021 | 0 | 4 |
| 2022 | 1 | 3 |
| 2023 | 3 | 0 |
| 2024 | 3 | 1 |
| 2025 | 1 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of making an interaxle differential unit and an annular case17 Jun 2025US 12,331,820 B2ArvinMeritor Technology, LLC
- Method for producing a hollow part made of a metal material and use of this method for producing a landing gear rod or beam27 Aug 2024US 12,070,782 B2Aubert & Duval
- Superalloy seamless tube and preparation method thereof4 Jun 2024US 12,000,032 B2Jiangsu University
- Pressing method and method of manufacturing mechanical apparatus19 Mar 2024US 11,931,983 B2Nsk Ltd.
- Method for piercing titanium alloy solid billet10 Oct 2023US 11,779,972 B2Northwestern Polytechnical University
- Method for integrally forming bicycle stem and handlebars5 Feb 2026US 2026/0034580 A1
- Method of making an interaxle differential unit and an annular case28 Aug 2025US 2025/0271053 A1ArvinMeritor Technology, LLC
- Method of manufacturing stabilizer and base material26 Jun 2025US 2025/0205773 A1NHK Spring Co., Ltd.
- Compound profiling forging method for large wind turbine main shaft29 Aug 2024US 2024/0286186 A1Zenkung Heavy Industry (Jiangsu) Co., Ltd.
- Core removal punch and hole forming method24 Nov 2022US 2022/0371135 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Multiplexed synchronous/asynchronous data bus25US 4,972,432 AMotorola, Inc. · 1990
- Method and apparatus for working a hole20US 4,129,028 AGrumman Aerospace Corporation · 1978
- Method of making a thin wall nozzle13US 7,231,716 B22007
- Thermal controlled mandrel with replaceable tip for copper and brass extrusion11US 5,687,604 AExco Technologies Limited · 1997
- Making method for seamless metallic tube10US 6,988,387 B2Sumitomo Metal Industries, Ltd. · 2006