JJ

John C. Jansma

TO The Standard Oil: 1 patents #291 of 601Top 50%
📍 Middleburg Heights, OH: #63 of 97 inventorsTop 65%
🗺 Ohio: #42,657 of 73,341 inventorsTop 60%
Overall (All Time): #4,015,377 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4518486 Concurrent production of two grades of coke using a single fractionator — 1985-05-21