AB

Aaron L. Barfels

JD John Deere: 7 patents #667 of 5,518Top 15%
Overall (All Time): #705,115 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11713775 Agricultural implements and hydraulic circuits therefor incorporating one or more priority valves Randall A. Maro 2023-08-01
10321621 Electronic latching circuit 2019-06-18
9200644 Implement with reduced hydraulic oil exchange Randall A. Maro 2015-12-01
8893816 Implement frame with main section helper lift cylinders Randall A. Maro 2014-11-25
8776908 Folding implement frame with weight transfer Randall A. Maro 2014-07-15
8573111 Active implement down force system with automatic latching of tractor power beyond pressure William Douglas Graham 2013-11-05
7918285 Implement with active wing down force and wing lift sequencing William Douglas Graham 2011-04-05