DH

Detlef Hahn

BH Baker Hughes Holdings: 1 patents #69 of 260Top 30%
📍 Grafenau, DE: #2 of 10 inventorsTop 20%
Overall (2002): #230,705 of 266,432Top 90%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6419033 Apparatus and method for simultaneous drilling and casing wellbores Friedhelm Makohl 2002-07-16