DH

Darral V. Humphries

BS Bethlehem Steel: 2 patents #1 of 40Top 3%
📍 Allentown, PA: #5 of 40 inventorsTop 15%
🗺 Pennsylvania: #204 of 2,652 inventorsTop 8%
Overall (1982): #15,249 of 81,411Top 20%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4363611 Apparatus for hydrostatic extrusion of thermoplastic polymers Alfred R. Austen 1982-12-14
4341827 Biaxially oriented thermoplastic polymer film and method of manufacture Alfred A. Austen 1982-07-27