JM

John Mathews

CD Control Data: 1 patents #56 of 192Top 30%
Overall (All Time): #3,950,516 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4739398 Method, apparatus and system for recognizing broadcast segments William L. Thomas, Steven J. Sletten, Jeffrey C. Swinehart, Michael W. Fellinger, John Erik Hershey +2 more 1988-04-19