RS

Rodger I. Spears

DC Donaldson Company: 6 patents #202 of 695Top 30%
📍 Bigfork, MN: #2 of 2 inventorsTop 100%
🗺 Minnesota: #9,275 of 52,454 inventorsTop 20%
Overall (All Time): #634,325 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
RE48050 Z-filter media pack arrangement; and, methods Kevin Schrage, Eugene Lensing, Jeff Rahlf, Wayne R. W. Bishop, Gregory Reichter +3 more 2020-06-16
RE46700 Z-filter media pack arrangement; and, methods Kevin Schrage, Eugene Lensing, Jeff Rahlf, Wayne R. W. Bishop, Gregory Reichter +3 more 2018-02-06
9114346 Z-filter media pack arrangement; and, methods Kevin Schrage, Eugene Lensing, Jeff Rahlf, Wayne R. W. Bishop, Gregory Reichter +3 more 2015-08-25
8518141 Z-filter media pack arrangement; and, methods Kevin Schrage, Eugene Lensing, Jeff Rahlf, Wayne R. W. Bishop, Gregory Reichter +3 more 2013-08-27
8241383 Z-filter media pack arrangement; and, methods Kevin Schrage, Eugene Lensing, Jeff Rahlf, Wayne R. W. Bishop, Gregory Reichter +3 more 2012-08-14
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
7077799 Apparatus and method for a high-efficiency self-cleaning centrifuge having concentrate cylinders Adelbert Gorham, Denis J. Dudrey, James N. Gehrking, Ronald L. Jorgenson, David S. Paulson +1 more 2006-07-18