AB

Allen Birschbach

General Motors: 2 patents #6,250 of 18,328Top 35%
Overall (All Time): #1,910,226 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10682695 Method for the semi-permanent mold casting process David D. Goettsch, Mark Eugene Hoover, Kyle W. Lehrmann 2020-06-16
7013947 Method for preparing engine block cylinder bore liners Kenneth Stahl, Barry L. Priem, Edward C. Wall 2006-03-21