B21K 5/16
Tools for turning nuts
Official title: tools for turning nuts
B21K5/16 (Tools for turning nuts) appears on 36 US grants and 29 published applications in this corpus.
Search patents in B21K- Granted patents
- 36
- Published applications
- 29
- Assignees
- 18
- Inventors
- 53
- Latest grant
- 27 Apr 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 2 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 3 |
| 2008 | 2 | 1 |
| 2009 | 2 | 2 |
| 2010 | 1 | 3 |
| 2011 | 1 | 0 |
| 2012 | 2 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 2 | 2 |
| 2017 | 0 | 2 |
| 2018 | 2 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 4 |
| 2021 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method of manufacturing socket punches27 Apr 2021US 10,987,745 B2Snap-on Incorporated
- Tool manufacturing method and tools produced thereby5 Jan 2021US 10,882,099 B2Flozfirm Technology Research Co., Ltd.
- Method for forming a wrench end18 Dec 2018US 10,155,261 B2
- Process of manufacturing wrenches27 Mar 2018US 9,925,581 B2
- Method of making a spanner11 Oct 2016US 9,463,503 B2
- Method for making socket and pawl of ratchet6 May 2021US 2021/0129209 A1
- Method of manufacturing socket punches30 Jul 2020US 2020/0238412 A1Snap-on Incorporated
- Forging device for molten metal19 Mar 2020US 2020/0086377 A1
- Tool manufacturing method and tools produced thereby12 Mar 2020US 2020/0078854 A1Flozfirm Technology Research Co., Ltd.
- Non-Deforming Structure of Wrench in Manufacturing Process20 Feb 2020US 2020/0055170 A1
Most cited
By later US patents
- Method of forming socket wrenches43US 4,291,568 AVeeder Industries Inc. · 1981
- Socket driver with retaining protuberances and method of manufacturing same43US 5,960,681 A1999
- Drive socket33US 6,240,813 B1Hand Tool Design Corporation · 2001
- Method of cold forming24US 4,166,373 ABraun Engineering Company · 1979
- Process of manufacturing shaped bodies by cold shaping18US 4,078,415 APeltzer & Ehlers · 1978