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John O. Hansen

POPolycom: 1 patents #211 of 365Top 60%

Andover, MA: #866 of 1,295 inventorsTop 70%

Massachusetts: #56,664 of 88,656 inventorsTop 65%

Overall (All Time): #3,359,535 of 4,157,543Top 85%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
D571776	Speakerphone	Anthony Martin Duys, Kit Morris, Brad Philip Collins, Crispian Tompkin	2008-06-24