E02F 3/30
With a dipper-arm pivoted on a cantilever beam , i.e. boom
Official title: with a dipper-arm pivoted on a cantilever beam {, i.e. boom}
E02F3/30 (With a dipper-arm pivoted on a cantilever beam , i.e. boom) appears on 1,669 US grants and 1,854 published applications in this corpus.
Search patents in E02F- Granted patents
- 1,669
- Published applications
- 1,854
- Assignees
- 289
- Inventors
- 2,560
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 15 | 0 |
| 1978 | 12 | 0 |
| 1979 | 13 | 0 |
| 1980 | 8 | 0 |
| 1981 | 12 | 0 |
| 1982 | 15 | 0 |
| 1983 | 12 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 11 | 0 |
| 1987 | 10 | 0 |
| 1988 | 13 | 0 |
| 1989 | 9 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 2 |
| 2002 | 12 | 4 |
| 2003 | 6 | 13 |
| 2004 | 7 | 12 |
| 2005 | 9 | 16 |
| 2006 | 8 | 7 |
| 2007 | 10 | 10 |
| 2008 | 6 | 4 |
| 2009 | 5 | 21 |
| 2010 | 7 | 17 |
| 2011 | 19 | 15 |
| 2012 | 7 | 21 |
| 2013 | 22 | 62 |
| 2014 | 32 | 88 |
| 2015 | 70 | 82 |
| 2016 | 63 | 149 |
| 2017 | 131 | 198 |
| 2018 | 134 | 157 |
| 2019 | 149 | 111 |
| 2020 | 108 | 133 |
| 2021 | 97 | 139 |
| 2022 | 99 | 144 |
| 2023 | 79 | 116 |
| 2024 | 158 | 120 |
| 2025 | 124 | 120 |
| 2026 | 85 | 93 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- E02F 3/32Working downwardly and towards the machine1,256
- E02F 3/308Working outwardly232
- E02F 3/304With the dipper-arm slidably mounted on the boom98
- E02F 3/301With more than two arms77
- E02F 3/306With telescopic dipper-arm or boom49
- E02F 3/302With an additional link37
- E02F 3/307The boom and the dipper-arm being connected so as to permit relative30
- E02F 3/303With the dipper-arm or boom rotatable about its longitudinal axis25
All 9 subgroupsShow fewer
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Most cited
By later US patents
- Motor drive system for an electric mining shovel85US 4,263,535 ABucyrus-Erie Company · 1981
- Region limiting excavation control system for construction machine74US 5,835,874 AHitachi Construction Machinery Co., Ltd. · 1998
- Systems, devices, and/or methods regarding excavating73US 7,832,126 B2Siemens Industry, Inc. · 2010
- Power shovel and crowd system therefor60US 4,046,270 AMarion Power Shovel Company, Inc. · 1977
- Skid steer vehicle60US 6,397,967 B1Jaden Charters Pty Ltd. · 2002