JF

John L. Fitzjohn

CO Conoco: 1 patents #310 of 638Top 50%
EA E.I. Du Pont De Nemours And: 1 patents #4,343 of 8,010Top 55%
Overall (All Time): #3,948,619 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4732213 Colloidal silica-based fluid diversion Karl E. Bennett, Richard A. Harmon, Paul C. Yates 1988-03-22