GP

Graham Ralph Powell

DU De Beers Uk: 2 patents #8 of 16Top 50%
DA De Beers Centenary Ag: 1 patents #6 of 15Top 40%
GE Gersan Establishment: 1 patents #13 of 28Top 50%
Overall (All Time): #1,199,064 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9796536 Automatic gemstone orientation Siobhan D'Gama, Maxwell Ralph Willis, Nicholas Matthew Davies 2017-10-24
9322785 Inclusion detection in polished gemstones James Gordon Charters Smith 2016-04-26
9079331 Gemstone alignment James Gordon Charters Smith 2015-07-14
6358427 Marking diamond James Gordon Charters Smith, Keith Barry Guy, Michael Peter Gaukroger 2002-03-19