E21F 17/04
Distributing means for power supply in mines
E21F17/04 (Distributing means for power supply in mines) appears on 70 US grants and 47 published applications in this corpus.
Search patents in E21F- Granted patents
- 70
- Published applications
- 47
- Assignees
- 46
- Inventors
- 133
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 4 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 1 |
| 2013 | 2 | 5 |
| 2014 | 4 | 9 |
| 2015 | 5 | 5 |
| 2016 | 5 | 2 |
| 2017 | 5 | 3 |
| 2018 | 2 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 5 |
| 2025 | 1 | 0 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Underground mine energy management system4 Aug 2026US 12,697,896 B2Caterpillar Inc.
- Power optimization through orchestration and prioritization of machines and functions31 Mar 2026US 12,590,541 B2Modular Mining Systems, Inc.
- Self-illuminated power cable with offset energy recovery system, and method of manufacturing same14 Jan 2025US 12,196,403 B2Nexans
- Power optimization through orchestration and prioritization of machines and functions9 Jan 2024US 11,867,063 B2Modular Mining Systems, Inc.
- System and method for monitoring water inrush21 Jun 2022US 11,365,624 B2China University of Mining and Technology, Beijing
- Method for relocating a modular trolley system and modular trolley system19 Mar 2026US 2026/0078673 A1
- Electrically powered civil engineering machine and method for electrically powering a civil engineering machine12 Mar 2026US 2026/0071496 A1BAUER Maschinen GmbH
- Mobile charging station for mining applications19 Dec 2024US 2024/0416782 A1Sandvik Mining and Construction Oy
- Rock drilling rig, system of mining equipment and method therefor12 Dec 2024US 2024/0413412 A1Epiroc Rock Drills Aktiebolag
- Power optimization through orchestration and prioritization of machines and functions2 May 2024US 2024/0141787 A1Modular Mining Systems, Inc.
Most cited
By later US patents
- Underground battery vault system for communications applications102US 6,617,973 B12003
- Hybrid energy off highway vehicle propulsion circuit44US 7,185,591 B2General Electric Company · 2007
- Multi-core hydraulic duct27US 4,149,567 AGewerkschaft Eisenhutte Westfalia · 1979
- Hybrid energy off highway vehicle propulsion circuit25US 7,325,498 B2General Electric Company · 2008
- Cable winding system for electrically powered mine vehicles24US 4,583,700 A1986