B21K 1/70
Of special shape
Official title: of special shape, e.g. self-locking nuts, wing nuts
B21K1/70 (Of special shape) appears on 100 US grants and 81 published applications in this corpus.
Search patents in B21K- Granted patents
- 100
- Published applications
- 81
- Assignees
- 64
- Inventors
- 127
- Latest grant
- 18 Oct 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 2 |
| 2003 | 2 | 2 |
| 2004 | 0 | 10 |
| 2005 | 5 | 6 |
| 2006 | 10 | 6 |
| 2007 | 1 | 11 |
| 2008 | 5 | 4 |
| 2009 | 2 | 1 |
| 2010 | 3 | 3 |
| 2011 | 3 | 2 |
| 2012 | 1 | 6 |
| 2013 | 4 | 4 |
| 2014 | 3 | 2 |
| 2015 | 2 | 5 |
| 2016 | 3 | 4 |
| 2017 | 3 | 2 |
| 2018 | 2 | 3 |
| 2019 | 0 | 2 |
| 2020 | 4 | 2 |
| 2021 | 3 | 0 |
| 2022 | 3 | 2 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Molding die structure for forming oblique teeth on a rivet nut18 Oct 2022US 11,471,930 B2Wei In Enterprise Co., Ltd.
- Conduit space recovery system14 Jun 2022US 11,362,491 B2WESCO Distribution, Inc.
- Nut integrated with bracket and method of manufacturing the same25 Jan 2022US 11,231,063 B2Hyundai Motor Company
- Nut with polygonal section7 Dec 2021US 11,193,524 B2HEWI G. Winker GmbH & Co. KG
- Crimped capped fastener13 Jul 2021US 11,060,548 B2MacLean-Fogg Company
- Screw-nut blank for producing a securing nut15 Aug 2024US 2024/0269731 A1Sf Handels- Und Besitzgesellschaft Mbh
- Molding Die Structure for Forming Oblique Teeth on a Rivet Nut3 Feb 2022US 2022/0032360 A1Wei In Enterprise Co., Ltd.
- Crimped capped fastener6 Jan 2022US 2022/0003262 A1MacLean-Fogg Company
- Nut integrated with bracket and method of manufacturing the same17 Sep 2020US 2020/0291981 A1Hyundai Motor Company
- Conduit space recovery system21 May 2020US 2020/0158156 A1WESCO Distribution, Inc.
Most cited
By later US patents
- Self-attaching nut and method of making same53US 5,531,552 AMultifastener Corporation · 1996
- Self-attaching fastener and installation die53US 5,549,430 AMultifastener Corporation · 1996
- Self-attaching nut53US 7,112,025 B2Whitesell International Corporation · 2006
- Self-attaching nut46US 6,994,500 B2Whitesell International Corporation · 2006
- Method for manufacturing part for floating nut assembly43US 5,146,668 A1992