RP

Richard C. Penttila

EL Economics Laboratory: 2 patents #7 of 48Top 15%
EU Ecolab Usa: 2 patents #224 of 575Top 40%
📍 Wyoming, MN: #22 of 86 inventorsTop 30%
🗺 Minnesota: #15,886 of 52,454 inventorsTop 35%
Overall (All Time): #1,302,355 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
RE32818 Cast detergent-containing article and method of using Peter J. Fernholz, James L. Copeland 1989-01-03
RE32763 Cast detergent-containing article and method of making and using Peter J. Fernholtz, James L. Copeland 1988-10-11
4569780 Cast detergent-containing article and method of making and using Peter J. Fernholz, James L. Copeland 1986-02-11
4569781 Cast detergent-containing article and method of using Peter J. Fernholz, James L. Copeland 1986-02-11