A01B 15/18
Coulters
A01B15/18 (Coulters) appears on 88 US grants and 78 published applications in this corpus.
Search patents in A01B- Granted patents
- 88
- Published applications
- 78
- Assignees
- 53
- Inventors
- 148
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 1 | 2 |
| 2014 | 4 | 12 |
| 2015 | 6 | 3 |
| 2016 | 1 | 9 |
| 2017 | 3 | 4 |
| 2018 | 7 | 14 |
| 2019 | 16 | 9 |
| 2020 | 7 | 3 |
| 2021 | 6 | 8 |
| 2022 | 4 | 3 |
| 2023 | 2 | 1 |
| 2024 | 6 | 1 |
| 2025 | 1 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fertilizer and row cleaner modules for agricultural row planter6 Oct 2026US 12,751,352 B2Harvest International, Inc.
- Striptill row unit16 Jun 2026US 12,653,081 B2Harvest International, Inc.
- Disk blade with sharpened edge and relief portion and method of manufacturing the same11 Mar 2025US 12,245,533 B2Deere & Company
- Variable tooth coulter blade with sized inserts5 Nov 2024US 12,133,480 B2Prescription Tillage Technologies, LLC
- Ground working apparatus including coulter and shovel for use with liquid fertilizer injector15 Oct 2024US 12,114,592 B2J A Redekop Holdings Ltd.
- Soil working device24 Sep 2026US 2026/0283062 A1
- Rezidue reaper blade28 May 2026US 2026/0144179 A1
- Coulter Holder for Agricultural Machines12 Mar 2026US 2026/0068799 A1Amazonen-Werke H. Dreyer SE & Co. KG
- Row cleaner arrangement for row units of an agricultural implement27 Feb 2025US 2025/0063964 A1
- Striptill row unit2 Jan 2025US 2025/0000001 A1Harvest International, Inc.
Most cited
By later US patents
- Seed sowing apparatus148US 5,269,237 AMassey University · 1993
- Gauge wheel and coulter arrangement for agricultural implement103US 6,325,156 B1Kinze Manufacturing, Inc. · 2001
- Fluted coulter blade86US 4,538,688 AIngersoll Products Inc. · 1985
- Hydraulic down pressure control system for an agricultural implement60US 8,776,702 B2Dawn Equipment Company · 2014
- Wavy coulter44US 5,649,602 A1997