William J. Roling

CD Control Data: 1 patents #56 of 192Top 30%

MP Magnetic Peripherals: 1 patents #58 of 149Top 40%

📍 Richfield, MN: #117 of 268 inventorsTop 45%

🗺 Minnesota: #23,881 of 52,454 inventorsTop 50%

Overall (All Time): #2,361,808 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4378576	Removable disc media	—	1983-03-29
4224648	Disc centering	—	1980-09-23