FH

Francis J. Hartke

PE Petrolite: 1 patents #81 of 143Top 60%
📍 Bridgeton, MO: #52 of 97 inventorsTop 55%
🗺 Missouri: #13,067 of 23,789 inventorsTop 55%
Overall (All Time): #4,115,902 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4212842 Corrosion inhibition — 1980-07-15