RB

Robert S. Butler

📍 Windom, MN: #1,009 of 2,819 inventorsTop 40%
🗺 Minnesota: #19,064 of 52,454 inventorsTop 40%
Overall (All Time): #1,673,116 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4740362 Regeneration and use of SO.sub.2 gas scrubber liquid in dual alkali system Paul F. Claerbout, Steven J. Harvey, Jerry L. Simpson, James H. Wilhelm 1988-04-26
4411875 Dual alkali process for combustion gas cleaning Paul F. Claerbout, Louis P. Kent, Randy S. Cleland, James H. Wilhelm, Richard E. Micko 1983-10-25
4286066 Continuous fermentation and distillation apparatus Lance B. Crombie 1981-08-25