RG

Ronald Grenfell

Overall (All Time): #2,121,568 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7715982 Monitoring sports Kefei Zhang, Colin Mackintosh, Daniel James, Neil S. Davey 2010-05-11
7272499 Monitoring water sports performance Kefei Zhang, Colin Mackintosh, Daniel James, Neil S. Davey 2007-09-18