EH

Erwin C. Hagedorn

OW Owens-Illinois: 2 patents #89 of 322Top 30%
📍 Oregon, OH: #44 of 128 inventorsTop 35%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,371,512 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4285728 Method of making low expansion crystallized glass-ceramics and telescope mirror blanks made thereby Clarence L. Babcock, Robert A. Busdiecker 1981-08-25
4192688 Product and process for forming same Clarence L. Babcock, Robert A. Busdiecker 1980-03-11