E02F 3/78
With rotating digging elements
Official title: with rotating digging elements
E02F3/78 (With rotating digging elements) appears on 82 US grants and 39 published applications in this corpus.
Search patents in E02F- Granted patents
- 82
- Published applications
- 39
- Assignees
- 40
- Inventors
- 113
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 0 |
| 2004 | 0 | 3 |
| 2005 | 0 | 2 |
| 2006 | 2 | 0 |
| 2007 | 1 | 3 |
| 2008 | 0 | 1 |
| 2009 | 2 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 4 |
| 2013 | 1 | 3 |
| 2014 | 1 | 2 |
| 2015 | 4 | 3 |
| 2016 | 2 | 0 |
| 2017 | 2 | 2 |
| 2018 | 0 | 2 |
| 2019 | 3 | 1 |
| 2020 | 1 | 1 |
| 2021 | 4 | 4 |
| 2022 | 3 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Skid steer trimmer assembly28 Oct 2025US 12,454,807 B1Burchland Mfg. Inc.
- Power rake15 Jul 2025US 12,359,395 B2Venture Products, Inc.
- Grading system21 Jun 2022US 11,365,522 B2Sc Grade, LLC
- Traction control method for a rotary mixer7 Jun 2022US 11,353,111 B2Caterpillar Paving Products Inc.
- Dirt contouring and grading device10 May 2022US 11,326,323 B2
- Power rake12 Mar 2026US 2026/0071403 A1Venture Products, Inc.
- Skid steer trimmer and grader assembly21 Nov 2024US 2024/0384502 A1
- Powered rakes & accessories providing grading16 May 2024US 2024/0159014 A1Progressive IP Limited
- Power rake23 Mar 2023US 2023/0087006 A1Venture Products, Inc.
- Grading System18 Nov 2021US 2021/0355647 A1Sc Grade, LLC
Most cited
By later US patents
- Grade cutting machine65US 4,041,623 AMiller Formless Co., Inc. · 1977
- Apparatus and method for forming a continuous strip of paving39US 4,197,032 APower Curbers, Inc. · 1980
- Automotive construction machine, as well as method for working ground surfaces39US 7,530,641 B2Wirtgen GmbH · 2009
- Trimmer type road construction apparatus with pivotally connected conveyor30US 3,946,506 ACMI Corporation · 1976
- Backfilling apparatus with adjustable filling augers26US 4,283,867 ARoscoe Brown Corporation · 1981