DR

David James Bell Ritchie

Overall (All Time): #2,015,912 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9468960 Extrusion of high temperature formable non-ferrous metals Robert Wilson, Merchant Yousuff, Nigel Austin Stone, Gersende Marie Delphine Cantin, Mark Antony Gibson +1 more 2016-10-18
8815133 Method of making a cementitious product Swee Liang Mak, Genrietta Shapiro, Rodney William Banks, Geoffrey William Quick 2014-08-26