DF

David A. Freitas

IBM: 2 patents #396 of 3,557Top 15%
🗺 California: #1,869 of 17,285 inventorsTop 15%
Overall (1997): #43,155 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5617536 Method and apparatus for servo control with error detection of gray (pennington) code used for servo track ID Louis J. Serrano, Mantle Man-Hon Yu 1997-04-01
5602692 Sampled position error signal demodulation system for banded data disk drives Shih-Ming Shih 1997-02-11