RP

Roger A. Powell

📍 Norristown, PA: #1 of 24 inventorsTop 5%
🗺 Pennsylvania: #313 of 3,759 inventorsTop 9%
Overall (1989): #16,888 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4888063 Variable aperture, variable flux density, aerospace solar collector 1989-12-19
4811659 Roller press for liquid/solid separation 1989-03-14