WP

William B. Plummer

IBM: 2 patents #32,839 of 70,183Top 50%
Overall (All Time): #2,347,352 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4578722 Method for checking disk identity in a flexible disk recorder Jeffrey L. Lovgren 1986-03-25
4226570 Blocker for magnetic diskette gripper Joseph J. Holecek, Clarence R. Schwieters, Michael N. Zell 1980-10-07