E02F 3/146
Guides for chains or buckets
Official title: {guides for chains or buckets, e.g. for buckets movable relative to chains (chains or chain guides E21C25/28)}
E02F3/146 (Guides for chains or buckets) appears on 20 US grants and 13 published applications in this corpus.
Search patents in E02F- Granted patents
- 20
- Published applications
- 13
- Assignees
- 16
- Inventors
- 41
- Latest grant
- 22 Aug 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 3 |
| 2012 | 2 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 1 | 2 |
| 2020 | 1 | 1 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- System and method for vibration monitoring of a mining machine1 Jun 2021US 11,021,851 B2Joy Global Surface Mining Inc
- Foundation construction device and its construction method23 Mar 2021US 10,954,653 B2
- Multiple tool construction machine12 May 2020US 10,648,155 B2Guangxi LiuGong Machinery Co., Ltd.
- Boom assembly for a trencher2 Apr 2019US 10,246,852 B2DeWind One-Pass Trenching, LLC
- Latching system for dipper11 Aug 2022US 2022/0251800 A1Caterpillar Global Mining LLC
- Foundation Construction Device and Its Construction Method26 Mar 2020US 2020/0095747 A1
- Chain Cutter for Excavating Rock/Soil and Its Application12 Dec 2019US 2019/0376253 A1
- Multiple tool construction machine5 Dec 2019US 2019/0368158 A1Guangxi LiuGong Machinery Co., Ltd.
- Boom Assembly For A Trencher15 Nov 2018US 2018/0328001 A1DeWind One-Pass Trenching, LLC
Most cited
By later US patents
- Boom assembly for a trencher machine29US 5,228,221 ACase Corporation · 1993
- Excavation apparatus10US 7,290,360 B2Vermeer Manufacturing Company · 2007
- Digging chain support for excavation6US 4,223,462 AJ. I. Case Company · 1980
- Endless belt dredger6US 4,430,812 AIHC Holland N. V. · 1984
- Chain trencher having head shaft wear plates6US 6,012,241 ATrencor, Inc. · 2000