EH

Earl C. Hetrick

KO Koppers: 1 patents #44 of 126Top 35%
📍 Lower Burrell, PA: #229 of 383 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,048,800 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4373998 Ascension pipe heat shield Donald T. Winter 1983-02-15