CK

Charles B. Kellner

CA Ca: 1 patents #669 of 1,424Top 50%
Overall (All Time): #2,843,346 of 4,157,543Top 70%
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Patent #TitleCo-InventorsDate
10210149 Personalized wiki-book annotation Michael Platt, Pavel {hacek over (S)}kopík 2019-02-19