B21G 3/12
Upsetting
Official title: Upsetting; Forming heads
B21G3/12 (Upsetting) appears on 42 US grants and 20 published applications in this corpus.
Search patents in B21G- Granted patents
- 42
- Published applications
- 20
- Assignees
- 19
- Inventors
- 55
- Latest grant
- 17 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 2 |
| 2004 | 3 | 2 |
| 2005 | 1 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 4 |
| 2011 | 0 | 2 |
| 2012 | 2 | 2 |
| 2013 | 1 | 0 |
| 2014 | 3 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 2 | 1 |
| 2022 | 2 | 3 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- High-speed and high quality nail-making system17 Oct 2023US 11,786,958 B2Zeus Techno Inc
- Long-life die for the manufacturing of elongate bodies18 Oct 2022US 11,471,931 B2Enkotec A/S
- Long-life die for the manufacturing of elongate bodies16 Aug 2022US 11,413,679 B2Enkotec A/S
- Die for the manufacturing of elongate bodies28 Dec 2021US 11,207,726 B2Enkotec A/S
- Die for the manufacturing of elongate bodies2 Feb 2021US 10,906,087 B1Enkotec A/S
- High-Speed and High Quality Nail-Making System1 Sep 2022US 2022/0274156 A1Zeus Techno Inc
- Long-life die for the manufacturing of elongate bodies24 Mar 2022US 2022/0088669 A1Enkotec A/S
- Long-life die for the manufacturing of elongate bodies3 Mar 2022US 2022/0062971 A1Enkotec A/S
- Die for the manufacturing of elongate bodies13 May 2021US 2021/0138529 A1Enkotec A/S
- Probes for wafer sorting4 Apr 2019US 2019/0101569 A1Intel Corporation
Most cited
By later US patents
- Method and apparatus for producing assemblies of headed fasteners21US 5,140,715 A1992
- Horseshoe nail and horseshoe nail forming process14US 5,988,967 AAjax Cooke Pty. Ltd. · 1999
- Railroad spike forging machine12US 4,493,202 AStafford Rail Products, Inc. · 1985
- Method and apparatus for making wire nails having radially offset, fully circular heads10US 5,195,931 AIllinois Tool Works Inc. · 1993
- Split head fastener8US 4,433,949 A1984