B21K 23/02
Members of endless tracks
Official title: members of endless tracks, e.g. track guides, shoes (making from sheet-metal B21D)
B21K23/02 (Members of endless tracks) appears on 22 US grants and 17 published applications in this corpus.
Search patents in B21K- Granted patents
- 22
- Published applications
- 17
- Assignees
- 11
- Inventors
- 47
- Latest grant
- 7 Feb 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 3 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 2 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 2 |
| 2019 | 1 | 0 |
| 2020 | 2 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Track assembly bushing having a wear member7 Feb 2023US 11,572,114 B2Caterpillar Inc.
- Bushing for a track assembly19 Oct 2021US 11,148,736 B2Caterpillar Inc.
- Method of track link manufacture5 Jan 2021US 10,882,574 B2Caterpillar Inc.
- Machine component and method for producing the same17 Nov 2020US 10,835,982 B2Komatsu Ltd.
- Method for non-linear fracture splitting14 Apr 2020US 10,618,103 B2Caterpillar Inc.
- Method and apparatus for manufacturing an elevator guide rail11 Sep 2025US 2025/0281968 A1Vol-Stahl GmbH
- Air-hardened machine components23 Jun 2022US 2022/0195550 A1Caterpillar Inc.
- Track assembly bushing having a wear member16 Sep 2021US 2021/0284259 A1Caterpillar Inc.
- Bushing for a track assembly5 Mar 2020US 2020/0070908 A1Caterpillar Inc.
- Track link and method for manufacturing track link22 Feb 2018US 2018/0050385 A1Komatsu Ltd.
Most cited
By later US patents
- Track link production method and track link produced by the same24US 7,040,080 B2Komatsu Ltd. · 2006
- Method and apparatus for installing links on an endless track chain20US 6,951,096 B2Caterpillar Inc. · 2005
- Track chain link and forging process for the manufacture of track chain links17US 4,449,357 ACaterpiller Tractor Co. · 1984
- Method and apparatus for disassembling a track chain16US 7,007,360 B2Caterpillar Inc. · 2006
- Method of cold coining a toothed segment for an endless track wheel and two-piece die therefor and article formed thereby11US 4,420,962 AWalker Forge, Inc. · 1983