DH

David A. Hardie

BH Baker Hughes Holdings: 1 patents #1,949 of 3,522Top 60%
📍 Inverurie, GB: #29 of 60 inventorsTop 50%
Overall (All Time): #3,279,455 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7665529 Lubricator valve with rotational flip-flap arm Graham E. Farquhar 2010-02-23