E21F 13/006
Equipment transport systems
Official title: {Equipment transport systems}
E21F13/006 (Equipment transport systems) appears on 34 US grants and 17 published applications in this corpus.
Search patents in E21F- Granted patents
- 34
- Published applications
- 17
- Assignees
- 26
- Inventors
- 78
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 2 | 2 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 4 |
| 2018 | 2 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Towing arrangement of a battery-powered mining machine and a battery-powered mining machine25 Aug 2026US 12,715,254 B2Sandvik Mining and Construction Oy
- Recovering conveyor systems and continuous miners from mined plunge tunnels in underground mines17 Oct 2023US 11,788,412 B2Underground Extraction Technologies Pty LTD
- Suspension device for monorail crane and monorail crane13 Jul 2021US 11,059,497 B2Taiyuan University of Technology
- Method for removing hydraulic support for solid filling coal mining31 Jul 2018US 10,036,252 B2China University of Mining and Technology
- Tow retrieval system for mining machine17 Apr 2018US 9,944,140 B2Caterpillar Underground Mining Pty. Ltd.
- Method for relocating a modular trolley system and modular trolley system19 Mar 2026US 2026/0078673 A1
- Towing arrangement of a battery-powered mining machine and a battery-powered mining machine6 Feb 2025US 2025/0042208 A1Sandvik Mining and Construction Oy
- Recovering conveyor systems and continuous miners from mined plunge tunnels in underground mines3 Jun 2021US 2021/0164349 A1Underground Extraction Technologies Pty LTD
- Suspension device for monorail crane and monorail crane25 Jun 2020US 2020/0198661 A1Taiyuan University of Technology
- Mining crane which is convenient to install25 Jun 2020US 2020/0198937 A1
Most cited
By later US patents
- Vehicle with selectively useable wheel sets54US 4,527,486 ASaturn Machine & Welding Co., Inc. · 1985
- Articulated mine service vehicle31US 4,202,453 ATimberline, Inc. · 1980
- Device for transporting loads, especially for belt driving stations in open pit mining26US 4,036,377 AFried. Krupp Gesellschaft mit beschrankter Haftung · 1977
- Pivoted lifting device19US 5,664,932 ALong-Airdox Company · 1997
- Material handling apparatus for use in a mine14US 4,199,299 APetitto Mine Equipment Repair, Inc. · 1980