RK

Robert Kalthoff

O& O&K: 1 patents #2 of 6Top 35%
Overall (All Time): #2,364,838 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4327834 Document retrieval system Paul J. Neumeier 1982-05-04
4308960 Document retrieval system and components thereof Paul J. Neumeier 1982-01-05