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Inventor
DOTSON GEORGE
US
4 patents
⚠️ This page may combine multiple inventors who share the name “DOTSON GEORGE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HELMERICH & PAYNE
3 patents
US6860337B1
Mar 1, 2005
Integrated mast and top drive for drilling rig
HELMERICH & PAYNE
83 citations
95
US6902007B1
Jun 7, 2005
Blow out preventer transportation
HELMERICH & PAYNE
46 citations
90
US7290621B2
Nov 6, 2007
Integrated mast and top drive for drilling rig
HELMERICH & PAYNE
9 citations
71
DOTSON AND EVANS INC
1 patent
US3975867A
Aug 24, 1976
Hand-held gem dop
DOTSON AND EVANS INC
4 citations
53