JJ

John W. Hassler, Jr.

UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #2,280,564 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5541784 Bootstrap method for writing servo tracks on a disk drive Daniel F. Cribbs 1996-07-30
5448429 Self-servowriting disk drive and method Daniel F. Cribbs, Michael L. Ellenberger 1995-09-05