E02F 3/40
Dippers
Official title: Dippers; Buckets {; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets (devices to connect tools to arms or booms E02F3/3604; teeth therefor E02F9/28)}
E02F3/40 (Dippers) appears on 1,101 US grants and 855 published applications in this corpus.
Search patents in E02F- Granted patents
- 1,101
- Published applications
- 855
- Assignees
- 380
- Inventors
- 1,593
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 28 | 0 |
| 1977 | 26 | 0 |
| 1978 | 25 | 0 |
| 1979 | 14 | 0 |
| 1980 | 8 | 0 |
| 1981 | 16 | 0 |
| 1982 | 11 | 0 |
| 1983 | 14 | 0 |
| 1984 | 11 | 0 |
| 1985 | 12 | 0 |
| 1986 | 13 | 0 |
| 1987 | 15 | 0 |
| 1988 | 8 | 0 |
| 1989 | 19 | 0 |
| 1990 | 19 | 0 |
| 1991 | 11 | 0 |
| 1992 | 13 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 11 | 0 |
| 1996 | 18 | 0 |
| 1997 | 14 | 0 |
| 1998 | 17 | 0 |
| 1999 | 25 | 0 |
| 2000 | 22 | 0 |
| 2001 | 19 | 4 |
| 2002 | 23 | 19 |
| 2003 | 23 | 14 |
| 2004 | 15 | 18 |
| 2005 | 9 | 28 |
| 2006 | 15 | 16 |
| 2007 | 14 | 15 |
| 2008 | 12 | 17 |
| 2009 | 17 | 18 |
| 2010 | 19 | 21 |
| 2011 | 20 | 27 |
| 2012 | 14 | 18 |
| 2013 | 17 | 41 |
| 2014 | 26 | 50 |
| 2015 | 47 | 45 |
| 2016 | 29 | 38 |
| 2017 | 46 | 78 |
| 2018 | 52 | 50 |
| 2019 | 54 | 43 |
| 2020 | 47 | 54 |
| 2021 | 37 | 46 |
| 2022 | 34 | 42 |
| 2023 | 26 | 37 |
| 2024 | 41 | 41 |
| 2025 | 34 | 41 |
| 2026 | 28 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Bucket with multiple radius wrapper6 Oct 2026US 12,753,567 B2Caterpillar Inc.
- Dipper lip29 Sep 2026US 12,747,558 B2Caterpillar Inc.
- Crusher bucket25 Aug 2026US 12,716,194 B2Meccanica Breganzese S.P.A. In Forma Abbreviata Mb S.P.A.
- Multifunctional grapple-heel combination device for use with a manipulation machine18 Aug 2026US 12,709,520 B2Treklos, LLC
- Work device18 Aug 2026US 12,709,862 B2Tmk Machinery Oy
- Mobile machine including thumb control system and associated method8 Oct 2026US 2026/0308867 A1Caterpillar Inc.
- Screening bucket8 Oct 2026US 2026/0308873 A1Simex Engineering S.R.L.
- Bedding bucket1 Oct 2026US 2026/0297888 A1CMP Attachments, LLC
- Snubber apparatus for earth-working bucket1 Oct 2026US 2026/0297889 A19257-5810 QuéBec Inc.
- Shroud boss for ground-engaging tool assembly3 Sep 2026US 2026/0258640 A1Caterpillar Inc.
Most cited
By later US patents
- Excavating tooth149US 4,965,945 AESCO Corporation · 1990
- Excavating tooth assembly115US 4,761,900 AESCO Corporation · 1988
- Tooth for a digging bucket of an excavator113US 4,980,980 A1991
- Wear parts for excavation apparatus82US 5,016,365 AGH Hensley Industries, Inc. · 1991
- Landscape rake with fluid controlled float capability75US 6,223,828 B1Caterpillar SARL · 2001