E21C 33/00
Trucks or other devices for transporting machines for slitting or completely freeing
Official title: Trucks or other devices for transporting machines for slitting or completely freeing the mineral from the seam
E21C33/00 (Trucks or other devices for transporting machines for slitting or completely freeing) appears on 12 US grants and 11 published applications in this corpus.
Search patents in E21C- Granted patents
- 12
- Published applications
- 11
- Assignees
- 13
- Inventors
- 27
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 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 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 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 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 3 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Millimeter-wave directed-energy excavation15 Sep 2026US 12,735,985 B2Massachusetts Institute of Technology
- Compact machine for carrying tools17 Mar 2026US 12,577,876 B2Pioneer Conveyor, LLC
- Mining machine and energy storage system for same10 Aug 2021US 11,084,367 B2Joy Global Longview Operations LLC
- Mining machine and energy storage system for same22 Oct 2019US 10,449,849 B2Joy Global Longview Operations LLC
- Systems, methods, and apparatuses for storing energy in a mining machine13 Aug 2019US 10,377,225 B2Joy Global Longview Operations LLC
- Millimeter-Wave Directed-Energy Excavation20 Nov 2025US 2025/0354489 A1Impact Technologies, LLC
- Mining machine comprising an actuator mounting arrangement18 Sep 2025US 2025/0290271 A1Sandvik Mining and Construction Oy
- Compact Machine for Carrying Tools27 Feb 2025US 2025/0067124 A1Pioneer Conveyor, LLC
- Nuclear power heavy construction, mining and processing apparatus to make Exo-planetary infrastructures operational for enmasse strategic minerals and water mining production7 Oct 2021US 2021/0310353 A1
- Mining dumper4 Mar 2021US 2021/0062651 A1Sandvik Mining and Construction Oy
Most cited
By later US patents
- Device for transporting loads, especially for belt driving stations in open pit mining26US 4,036,377 AFried. Krupp Gesellschaft mit beschrankter Haftung · 1977
- Mining machine with detachable articulated cutting assembly16US 6,224,164 B1Joy MM Delaware, Inc. · 2001
- Method and arrangement for controlling cable winding and unwinding in an electrically driven vehicle11US 6,119,837 ATamrock Oy · 2000
- Mining machine and energy storage system for same6US 9,764,634 B2Joy Global Longview Operations LLC · 2017
- Mining machine and energy storage system for same4US 11,084,367 B2Joy Global Longview Operations LLC · 2021