E21C 31/12
Component parts
E21C31/12 (Component parts) appears on 35 US grants and 34 published applications in this corpus.
Search patents in E21C- Granted patents
- 35
- Published applications
- 34
- Assignees
- 9
- Inventors
- 47
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 6 |
| 2014 | 4 | 0 |
| 2015 | 3 | 1 |
| 2016 | 1 | 4 |
| 2017 | 3 | 3 |
| 2018 | 3 | 9 |
| 2019 | 5 | 1 |
| 2020 | 5 | 4 |
| 2021 | 3 | 2 |
| 2022 | 4 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Electric terminal assembly of a drive unit for use in a mining machine10 Jun 2025US 12,328,054 B2Caterpillar Global Mining Europe GmbH
- Liquid-tight drive connection for engine and transmission coupling28 Jan 2025US 12,209,650 B2Caterpillar Inc.
- Chain conveyor and link for same20 Dec 2022US 11,530,095 B2Joy Global Underground Mining LLC
- Chain conveyor13 Sep 2022US 11,440,736 B2Joy Global Underground Mining LLC
- Mining machine with articulating boom and independent material handling system19 Jul 2022US 11,391,149 B2Joy Global Underground Mining LLC
- Electric terminal assembly of a drive unit for use in a mining machine11 May 2023US 2023/0142261 A1Caterpillar Global Mining Europe GmbH
- Liquid-tight drive connection for engine and transmission coupling17 Nov 2022US 2022/0364638 A1Caterpillar Global Mining Europe GmbH
- Chain conveyor5 Aug 2021US 2021/0237979 A1Joy Global Underground Mining LLC
- Mining machine with articulating boom and independent material handling system8 Apr 2021US 2021/0102463 A1Joy Global Underground Mining LLC
- Chain conveyor and link for same12 Nov 2020US 2020/0354150 A1Joy Global Underground Mining LLC
Most cited
By later US patents
- Chain conveyor with cast sections12US 10,106,325 B2Joy Global Underground Mining LLC · 2018
- Chain conveyor8US 10,414,594 B2Joy Global Underground Mining LLC · 2019
- Chain conveyor link7US 10,392,193 B2Joy Global Underground Mining LLC · 2019
- Chain conveyor and coupler link for same6US 10,442,627 B2Joy Global Underground Mining LLC · 2019
- Drive shaft and sprockets for chain conveyor4US 10,604,347 B2Joy Global Underground Mining LLC · 2020