RC

Richard S. Cardinal

DC Donaldson Company: 3 patents #297 of 695Top 45%
📍 Minneapolis, MN: #1,962 of 6,114 inventorsTop 35%
🗺 Minnesota: #19,064 of 52,454 inventorsTop 40%
Overall (All Time): #1,550,795 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8141716 Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy Ismael Ferrer, Veli E. Kalayci 2012-03-27
7910003 Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy Ismael Ferrer, Veli E. Kalayci 2011-03-22
7641055 Polysulfone and poly(N-vinyl lactam) polymer alloy and fiber and filter materials made of the alloy Ismael Ferrer, Veli E. Kalayci 2010-01-05