RS

Rodger I. Spears

DC Donaldson Company: 1 patents #49 of 125Top 40%
📍 Bigfork, MN: #1 of 2 inventorsTop 50%
🗺 Minnesota: #1,027 of 5,843 inventorsTop 20%
Overall (2011): #70,360 of 364,097Top 20%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7967886 Z-filter media pack arrangement; and, methods Kevin Schrage, Eugene Lensing, Jeff Rahlf, Wayne R. W. Bishop, Gregory Reichter +3 more 2011-06-28
7901343 Methods and apparatus for centrifuging dry solids Denis J. Dudrey, James N. Gehrking, Adelbert Gorham, Ronald L. Jorgenson, Lloyd E. Weisert 2011-03-08