E02F 3/18
With digging wheels turning round an axis
Official title: with digging wheels turning round an axis {, e.g. bucket-type wheels (for digging trenches E02F5/08; for laying cables underwater E02F5/109; cutting machines E21C25/00; methods or apparatus for making tunnels or galleries E21D9/00)}
E02F3/18 (With digging wheels turning round an axis) appears on 439 US grants and 299 published applications in this corpus.
Search patents in E02F- Granted patents
- 439
- Published applications
- 299
- Assignees
- 190
- Inventors
- 698
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 8 | 0 |
| 1978 | 10 | 0 |
| 1979 | 10 | 0 |
| 1980 | 9 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 12 | 0 |
| 1989 | 13 | 0 |
| 1990 | 14 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 13 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 1 |
| 2002 | 9 | 3 |
| 2003 | 6 | 10 |
| 2004 | 6 | 9 |
| 2005 | 8 | 9 |
| 2006 | 5 | 12 |
| 2007 | 6 | 5 |
| 2008 | 8 | 9 |
| 2009 | 10 | 8 |
| 2010 | 8 | 8 |
| 2011 | 6 | 11 |
| 2012 | 8 | 12 |
| 2013 | 2 | 11 |
| 2014 | 6 | 8 |
| 2015 | 15 | 16 |
| 2016 | 9 | 11 |
| 2017 | 12 | 14 |
| 2018 | 6 | 19 |
| 2019 | 19 | 18 |
| 2020 | 19 | 11 |
| 2021 | 12 | 21 |
| 2022 | 12 | 19 |
| 2023 | 11 | 12 |
| 2024 | 9 | 26 |
| 2025 | 12 | 9 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E02F 3/20With tools that only loosen the material , i.e. mill-type wheels264
- E02F 3/22Component parts217
- E02F 3/188With the axis being horizontal and transverse to the direction of travel99
- E02F 3/181Including a conveyor49
- E02F 3/183With digging unit shiftable relative to the frame35
- E02F 3/186With the axis being substantially parallel to the direction of travel22
- E02F 3/185With digging unit mounted in a plane which is inclined to the1
Recent patents
- Trench wall cutting device and method for cutting a cutting trench in the ground15 Sep 2026US 12,735,862 B2BAUER Maschinen GmbH
- Boring machine comprising a variable-geometry cutting device25 Aug 2026US 12,716,188 B2Soletanche Freyssinet
- Construction method and arrangement for carrying out a construction project4 Aug 2026US 12,700,049 B2BAUER Spezialtiefbau GmbH
- Work implement with a mechanical diaphragm wall gripper and method for carrying out a working step of such a work implement19 May 2026US 12,630,999 B2Liebherr-Werk Nenzing GmbH
- Trench cutter and method for forming a cut trench in the ground21 Apr 2026US 12,606,983 B2BAUER Maschinen GmbH
- Dual blade microtrench attachment16 Jul 2026US 2026/0201672 A1The Charles Machine Works, Inc.
- Cold scarification and recycling assembly for restoring a road pavement, methods for restoring a road surface with such assembly and use of a mixture of bitumen or a mixture containing a hydrocarbon binding agent in such assembly11 Jun 2026US 2026/0160029 A1Simex Engineering S.R.I.
- Hydraulic system for leg assembly of work machine14 May 2026US 2026/0132596 A1Caterpillar Paving Products Inc.
- Method for determining a position and/or movement of a rope9 Apr 2026US 2026/0097933 A1Liebherr-Werk Nenzing GmbH
- Power rake12 Mar 2026US 2026/0071403 A1Venture Products, Inc.
Most cited
By later US patents
- Submarine drilling device81US 4,742,876 ASoletanche · 1988
- Process for placing a piling in the ground, a drilling machine and an arrangement for implementing this process78US 4,904,119 ASoletanche · 1990
- Ground breaking apparatus51US 5,259,692 A1993
- Apparatus for high-volume in situ soil remediation51US 6,543,963 B22003
- Roadway trenching apparatus49US 5,315,770 AAstec Industries, Inc. · 1994