E02F 3/26
Safety or control devices
Official title: Safety or control devices (safety devices in general F16P; controlling in general G05B)
E02F3/26 (Safety or control devices) appears on 38 US grants and 34 published applications in this corpus.
Search patents in E02F- Granted patents
- 38
- Published applications
- 34
- Assignees
- 29
- Inventors
- 85
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 2 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 4 |
| 2020 | 4 | 1 |
| 2021 | 3 | 7 |
| 2022 | 0 | 2 |
| 2023 | 3 | 0 |
| 2024 | 2 | 3 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Drive device for a diaphragm wall cutter7 Jan 2025US 12,188,199 B2Liebherr-Components Biberach GmbH
- Construction machine management system, construction machine management program, construction machine management method, construction machine, and external management device for construction machine10 Sep 2024US 12,084,833 B2J Think Corporation
- Milling attachment with adjustable cover27 Aug 2024US 12,071,733 B2Wirtgen GmbH
- Geophysical sensor retrieval system5 Dec 2023US 11,834,807 B2Geophysical Technology, 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.
- Work vehicle attachment service mode23 Oct 2025US 2025/0327264 A1Deere & Company
- Milling attachment with adjustable cover6 Feb 2025US 2025/0043525 A1Wirtgen GmbH
- Mining machine and method for controlling movement of a movable element of a mining machine4 Apr 2024US 2024/0110477 A1Sandvik Mining and Construction Oy
- Work implement with a mechanical diaphragm wall gripper and method for carrying out a working step of such a work implement28 Mar 2024US 2024/0102262 A1Liebherr-Werk Nenzing GmbH
Most cited
By later US patents
- Method of determining mining progress in open cast mining by means of satellite geodesy44US 5,144,317 ARheinbraun Aktiengesellschaft · 1992
- Rotatable implement depth control apparatus33US 6,247,757 B12001
- Microtrencher having a utility avoidance safety device and method of microtrenching28US 10,571,047 B2Cciip LLC · 2020
- Control of excavation apparatus25US 6,729,050 B2Vermeer Manufacturing Company · 2004
- Rotating disk-type ditcher18US 5,511,326 A1996