DF

David Fisher

DU De Beers Uk: 1 patents #1 of 7Top 15%
📍 Longlane, VA: #1 of 1 inventorsTop 100%
Overall (2025): #413,880 of 469,880Top 90%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12194504 Melee gemstone sorting Philip Harris, Peter Stanley Rose, Andrew John Portsmouth, Trevor Anthony Harries, Colin McGuinness 2025-01-14