JH

John D. Hakanson

3M: 2 patents #5,326 of 11,543Top 50%
Overall (All Time): #2,334,935 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4722017 Static reduction in magnetic record disk assemblies Wayne H. Vannet, Gerald J. Niles 1988-01-26
4570197 Static reduction in magnetic recording cassettes Gerald J. Niles 1986-02-11