JK

Johannes M. Kerkhof

U.S. Philips: 2 patents #2,537 of 8,851Top 30%
Overall (All Time): #2,252,785 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5952094 Magneto-optical recording medium Hans Willem Van Kesteren, Wouter Bastiaan Zeper, Friedrich J. A. Den Broeder 1999-09-14
5756202 Magnetic-optical recording medium Hans Willem Van Kesteren, Auke Jan Mud 1998-05-26