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Christopher Callahan

Microsoft: 1 patents #24,826 of 40,388Top 65%
Overall (All Time): #2,060,018 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8864171 Scooter for a handicapped child 2014-10-21
7673178 Break and optional hold on failure Loren Merriman, Gordon Hardy, Curtis Anderson, Michael Robinson, Dipak Boyed 2010-03-02