Inventor
LEMA RAUL E
US3 patents
Patents
3 patentsUS7182162B2Feb 27, 2007
Shirttails for reducing damaging effects of cuttings
BAKER HUGHES INC17 citations91
US7152703B2Dec 26, 2006
Compact for earth boring bit with asymmetrical flanks and shoulders
BAKER HUGHES INC46 citations91
US7350600B2Apr 1, 2008
Shirttails for reducing damaging effects of cuttings
BAKER HUGHES INC7 citations72