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John R. Simpson

AE Audiological Engineering: 1 patents #3 of 4Top 75%
HO Howmedica Osteonics: 1 patents #381 of 595Top 65%
NP Northern Engineering Industries Plc: 1 patents #11 of 45Top 25%
Overall (All Time): #1,029,517 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7338499 Hip arthroplasty balancing apparatus and method John D. Kuczynski 2008-03-04
5957088 Poultry flooring system Andrew M. Knott 1999-09-28
5642304 Apparatus for high-speed solution of arbitrary mathematical expressions with logic code generator and programmable logic circuit 1997-06-24
5388992 Method and apparatus for tactile transduction of acoustic signals from television receivers David Franklin, Michael Wollowitz 1995-02-14
4894573 Rotary electrical machines 1990-01-16