AR

Arthur W. Richards

SL Sphere Investments Limited: 2 patents #2 of 9Top 25%
📍 Plenty, AU: #2 of 3 inventorsTop 70%
Overall (All Time): #2,358,258 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4451812 Electrostatic shield Valentino F. Vescovi 1984-05-29
4320841 Detection and sorting systems Hilton P. Gordon, Albert P. Hawkins, Alan Boyle 1982-03-23