PB

Peter C. Bertelson

Overall (All Time): #1,051,554 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5988612 Composite helical springs and process of manufacture 1999-11-23
5372100 Engine valve train pushrod 1994-12-13
5073315 Methods for making fiber reinforced wheels and other structural moldings 1991-12-17
5020857 Use of fluid dynamic restrictor for lowering dump truck beds 1991-06-04
4519591 Non-metallic leaf spring structure John W. Bush 1985-05-28