E02F 3/48
Drag-lines
E02F3/48 (Drag-lines) appears on 92 US grants and 71 published applications in this corpus.
Search patents in E02F- Granted patents
- 92
- Published applications
- 71
- Assignees
- 47
- Inventors
- 150
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 0 |
| 2003 | 2 | 3 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 2 | 2 |
| 2007 | 0 | 4 |
| 2008 | 2 | 3 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 5 |
| 2012 | 3 | 3 |
| 2013 | 1 | 6 |
| 2014 | 1 | 3 |
| 2015 | 6 | 5 |
| 2016 | 2 | 7 |
| 2017 | 3 | 5 |
| 2018 | 9 | 5 |
| 2019 | 2 | 4 |
| 2020 | 5 | 2 |
| 2021 | 3 | 3 |
| 2022 | 3 | 2 |
| 2023 | 2 | 2 |
| 2024 | 0 | 1 |
| 2025 | 1 | 4 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Bearing assembly for driveshafts of draglines1 Sep 2026US 12,723,365 B2Caterpillar Global Mining LLC
- Hitch assembly for bucket20 Jan 2026US 12,529,204 B2Caterpillar Global Mining LLC
- Walking system with replaceable wear surfaces7 Jan 2025US 12,188,202 B2Caterpillar Global Mining LLC
- Dragline bucket16 May 2023US 11,649,606 B2Caterpillar Inc.
- Pin and retainer locking system21 Feb 2023US 11,585,069 B2Caterpillar Inc.
- Dragline bucket and work machines, systems, and assemblies thereof20 Nov 2025US 2025/0354347 A1Caterpillar Global Mining LLC
- Arch back dragline bucket and work machines, systems, and assemblies thereof13 Nov 2025US 2025/0347082 A1Caterpillar Global Mining LLC
- Bearing assembly for driveshafts of draglines5 Jun 2025US 2025/0179763 A1Caterpillar Global Mining LLC
- Angular arch dragline bucket and work machines, systems, and assemblies thereof5 Jun 2025US 2025/0179764 A1Caterpillar Global Mining LLC
- Hitch assembly for bucket29 Feb 2024US 2024/0068198 A1Caterpillar Global Mining LLC
Most cited
By later US patents
- Systems, devices, and/or methods regarding excavating73US 7,832,126 B2Siemens Industry, Inc. · 2010
- Method and apparatus for monitoring a load condition of a dragline40US 7,472,009 B2Leica Geosystems AG · 2008
- Control device for a dragline excavator27US 3,934,126 A1976
- Dragline excavator bucket and rigging27US 5,400,530 A1995
- Dragline bucket and method of operating the same24US 5,084,990 AESCO Corporation · 1992