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Robert Kalthoff — 2 Patents

O&O&K: 1 patents #2 of 6Top 35%
Cincinnati, OH: #3,656 of 8,043 inventorsTop 50%
Ohio: #30,551 of 73,341 inventorsTop 45%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Robert Kalthoff has been granted 2 US patents while listed as an inventor at O&K. All of these patents were granted in 1982. Robert Kalthoff ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Robert Kalthoff in Cincinnati, OH, US.

Issued Patents All Time

Showing 1–2 of 2 patents

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

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