DH

Duane Harthoorn

VM Vermeer Manufacturing: 15 patents #10 of 366Top 3%
JD John Deere: 1 patents #2,957 of 5,518Top 55%
📍 Lynnville, IA: #2 of 5 inventorsTop 40%
🗺 Iowa: #771 of 15,303 inventorsTop 6%
Overall (All Time): #268,479 of 4,157,543Top 7%
17
Patents All Time

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #TitleCo-InventorsDate
12023745 Cutter wheel wear inserts and mounting Joshua Dean Nossaman, Claudio Carrafiello Verzilli, Daniel Roorda 2024-07-02
11498080 Mill box for a horizontal grinder Brian M. Johnson, Jeffrey Belloma 2022-11-15
11484886 Shredder for comminuting bulk material Michael J. McCall, Edwin N. Galloway, Tyler Haden, Young Min Yee, Ward Boyce Meldrum +1 more 2022-11-01
10737275 Mill box for a horizontal grinder Brian M. Johnson, Jeffrey Belloma 2020-08-11
10335796 Sizing screens for comminuting machines Greg Williams, Jerry Patterson 2019-07-02
10086382 Material reducing apparatus including an automatically positioned thrown object deflector Greg Williams, Jim O'Halloran, Jeff Bradley 2018-10-02
9505007 Deflection structure for tub grinder Greg Williams, Jerry Patterson 2016-11-29
9192964 Material reducing apparatus having features for enhancing reduced material size uniformity Daniel James Vroom 2015-11-24
8245961 Material reducing apparatus having features for enhancing reduced material size uniformity Daniel James Vroom 2012-08-21
8104701 Apparatus and method for supporting a removable anvil Brian Smidt, Darin Dux, Scott Eberts 2012-01-31
7971818 Apparatus and method for supporting a removable anvil Brian Smidt, Darin Dux, Scott Eberts 2011-07-05
7461802 Apparatus and method for supporting a removable anvil Brian Smidt, Darin Dux, Scott Eberts 2008-12-09
7441719 Mill box for materials grinder Gary Verhoef, Frederick H. Lucas 2008-10-28
6978955 Mill box for materials grinder Gary Verhoef, Frederick H. Lucas 2005-12-27
6843435 Mill box for materials grinder Gary Verhoef, Frederick H. Lucas 2005-01-18
D452294 Hydraulic fluid tank Fred H Lucas 2001-12-18
5682958 Rear wheel assist for a self-propelled scraper George Paul Kalhorn, Arvid H. Saele, Larry DeVore 1997-11-04