E21C 27/30
By jaws, buckets or scoops that scoop-out the mineral
Official title: by jaws, buckets or scoops that scoop-out the mineral
E21C27/30 (By jaws, buckets or scoops that scoop-out the mineral) appears on 37 US grants and 38 published applications in this corpus.
Search patents in E21C- Granted patents
- 37
- Published applications
- 38
- Assignees
- 11
- Inventors
- 63
- Latest grant
- 10 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 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 | 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 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 7 |
| 2015 | 3 | 6 |
| 2016 | 4 | 2 |
| 2017 | 4 | 6 |
| 2018 | 3 | 6 |
| 2019 | 4 | 1 |
| 2020 | 5 | 5 |
| 2021 | 3 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ground engaging tool locking system10 Dec 2024US 12,163,315 B2Joy Global Surface Mining Inc
- System and method for estimating a payload of an industrial machine6 Feb 2024US 11,891,772 B2Joy Global Surface Mining Inc
- Ground engaging tool locking system17 Jan 2023US 11,555,295 B2Joy Global Surface Mining Inc
- Rope cam dipper26 Oct 2021US 11,156,086 B2Joy Global Surface Mining Inc
- Conduit support structure for an industrial machine with pivot joint1 Jun 2021US 11,021,850 B2Joy Global Surface Mining Inc
- Method for controlling automatic operation of mining electric shovel considering sudden load variations during excavations2 Jul 2026US 2026/0185445 A1China University of Mining and Technology
- Ground engaging tool locking system27 Mar 2025US 2025/0101719 A1Joy Global Surface Mining Inc
- Ground engaging tool locking system18 May 2023US 2023/0151589 A1Joy Global Surface Mining Inc
- System and method for estimating a payload of an industrial machine29 Sep 2022US 2022/0307219 A1Joy Global Surface Mining Inc
- Dipper door trip assembly26 Nov 2020US 2020/0370272 A1Joy Global Surface Mining Inc
Most cited
By later US patents
- Rope shovel with curved boom11US 8,756,839 B2Harnischfeger Technologies, Inc. · 2014
- Power actuated lazy-tongs arrangement10US 4,041,799 A1977
- Ground engaging tool locking system9US 10,563,381 B2Joy Global Surface Mining Inc · 2020
- Endless bucket type excavator8US 3,967,854 A1976
- Conduit support structure for an industrial machine with saddle block8US 9,382,685 B2Harnischfeger Technologies, Inc. · 2016