E02F 3/08
With digging elements on an endless chain
Official title: with digging elements on an endless chain (conveyors B65G)
E02F3/08 (With digging elements on an endless chain) appears on 248 US grants and 154 published applications in this corpus.
Search patents in E02F- Granted patents
- 248
- Published applications
- 154
- Assignees
- 110
- Inventors
- 400
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 10 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 17 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 10 | 0 |
| 2001 | 1 | 2 |
| 2002 | 5 | 9 |
| 2003 | 8 | 6 |
| 2004 | 7 | 6 |
| 2005 | 5 | 3 |
| 2006 | 4 | 4 |
| 2007 | 1 | 6 |
| 2008 | 2 | 6 |
| 2009 | 3 | 11 |
| 2010 | 10 | 5 |
| 2011 | 5 | 10 |
| 2012 | 7 | 6 |
| 2013 | 1 | 3 |
| 2014 | 1 | 5 |
| 2015 | 4 | 6 |
| 2016 | 2 | 6 |
| 2017 | 4 | 4 |
| 2018 | 4 | 9 |
| 2019 | 7 | 8 |
| 2020 | 4 | 12 |
| 2021 | 10 | 5 |
| 2022 | 4 | 8 |
| 2023 | 2 | 6 |
| 2024 | 4 | 4 |
| 2025 | 8 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E02F 3/12Component parts149
- E02F 3/10With tools that only loosen the material , i.e. with cutter-type chains106
- E02F 3/085With auxiliary or additional digging elements other than digging elements on an34
- E02F 3/086Vertically shiftable relative to the frame32
- E02F 3/088Pivotable relative to the frame21
- E02F 3/083Including a screw-type conveyor for transporting the excavated material19
- E02F 3/081Mounted on floating substructures18
- E02F 3/082Including a belt-type conveyor for transporting the excavated material15
All 9 subgroupsShow fewer
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- Bucket cleaning system22 May 2025US 2025/0162005 A1
- Multi-tool cutting assembly30 Jan 2025US 2025/0034837 A1Kennametal Inc.
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Most cited
By later US patents
- Casino chip and method of making79US 3,953,932 A1976
- Laser-guided construction equipment68US 6,736,216 B2Leica Geosystems GR, LLC · 2004
- Apparatus for high-volume in situ soil remediation51US 6,543,963 B22003
- Rolling assembly and pick assembly mounted on a trencher44US 7,681,338 B22010
- Road planar40US 4,755,001 A1988