JP

Jeffrey K. Parkinson

SI Siltech: 1 patents #9 of 28Top 35%
TG The Hanson Group: 1 patents #5 of 15Top 35%
Overall (All Time): #2,262,798 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5786389 Guerbet castor esters Anthony J. O'Lenick, Jr. 1998-07-28
4975122 Water resistant cemetitious materials Anthony J. O'Lenick, Jr. 1990-12-04