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John P. Spangler

ST Seagate Technology: 1 patents #2,726 of 4,626Top 60%
Overall (All Time): #3,518,895 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6600637 Edge barrier to prevent spin valve sensor corrosion and improve long term reliability Hong Wang, Robbee L. Grimm, Matthew T. Johnson, Craig A. Ballentine, Qing He +2 more 2003-07-29