FW

Frederick T. Welge

PE Petrolite: 4 patents #27 of 143Top 20%
📍 Affton, MO: #1 of 19 inventorsTop 6%
🗺 Missouri: #5,256 of 23,789 inventorsTop 25%
Overall (All Time): #1,302,810 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4818410 Method of removing water soluble organics from oil process water Thomas J. Bellos, Roy W. Greenlee 1989-04-04
4229294 Hydroxypropylene-amino-phosphonic-sulfonic acids for inhibiting scale formation Derek Redmore 1980-10-21
4212734 Inhibiting scale with amino-phosphonic-sulfonic acids Derek Redmore 1980-07-15
4187245 Hydroxypropylene-amino-phosphonic-sulfonic acids Derek Redmore 1980-02-05