B21D 53/50
Metal slide-fastener parts
Official title: metal slide-fastener parts
B21D53/50 (Metal slide-fastener parts) appears on 35 US grants and 23 published applications in this corpus.
Search patents in B21D- Granted patents
- 35
- Published applications
- 23
- Assignees
- 14
- Inventors
- 53
- Latest grant
- 16 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 4 | 4 |
| 2016 | 3 | 1 |
| 2017 | 2 | 1 |
| 2018 | 3 | 2 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 2 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Dispatch system and dispatch method for manufacturing mold16 Jan 2024US 11,872,725 B2Zhong Chuan Technology Limited
- Slider and slider assembling method28 Mar 2023US 11,612,221 B2YKK Corporation
- Method of manufacturing a cap structure21 Sep 2021US 11,122,868 B2Chung Chwan Enterprise Co., Ltd.
- Methods for preparing a slide fastener for operational use on an article23 Feb 2021US 10,925,354 B1Ideal Fastener Corporation
- Metallic fastener member having light gold color, and fastener provided therewith25 Dec 2018US 10,161,019 B2YKK Corporation
- Fastener element, fastener stringer, and fastener element evaluation method16 Oct 2025US 2025/0318604 A1YKK Corporation
- Machining equipment for double-point zipper teeth5 May 2022US 2022/0133001 A1Dongguan Lexiang Hardware & Zipper Products Co., LTD
- Slider and slider assembling method22 Jul 2021US 2021/0219672 A1YKK Corporation
- Dispatch system and dispatch method for manufacturing mold4 Mar 2021US 2021/0060823 A1Chung Chwan Enterprise Co., Ltd.
- Method of manufacturing a cap structure2 Jul 2020US 2020/0205529 A1Chung Chwan Enterprise Co., Ltd.
Most cited
By later US patents
- Apparatus for feeding slide fastener parts12US 3,956,812 AYoshida Kogyo K. K. · 1976
- Method and apparatus of applying slider device to a recloseable zipper arrangement12US 6,418,605 B1Reynolds Consumer Products, Inc. · 2002
- Mounting assembly6US 8,943,840 B2ROLLS-ROYCE plc · 2015
- Method and apparatus for manufacturing slide fastener coupling elements5US 4,388,751 AYoshida Kogyo K. K. · 1983
- Apparatus for forming and planting slide fastener elements5US 4,550,477 AYoshida Kogyo K. K. · 1985