DS

David M. Stamerjohn

AO Ashland Oil: 2 patents #103 of 284Top 40%
📍 Columbus, OH: #1,440 of 3,880 inventorsTop 40%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,354,916 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4543163 Process for recovery of amine from spent acid stripping liquor Richard V. Norton, Gregory P. Sturtz 1985-09-24
4472246 Process for recovery of amine from spent acid stripping liquor Richard V. Norton, Gregory P. Sturtz 1984-09-18