RD

Ruth A. Dudenhoefer

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): #2,284,734 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5390727 Inorganic poundry binder systems and their uses Yuily M. Yunovich, Heimo J. Langer 1995-02-21
5279665 Inorganic foundry binder systems and their uses Yuily M. Yunovich, Heimo J. Langer 1994-01-18