Inventor
ALEXANDER GABRIEL G
US5 patents
Patents
5 patentsUS4646844AMar 3, 1987
Diverter/bop system and method for a bottom supported offshore drilling rig
HYDRIL CO136 citations97
US4719937AJan 19, 1988
Marine riser anti-collapse valve
HYDRIL CO71 citations95
US4597447AJul 1, 1986
Diverter/bop system and method for a bottom supported offshore drilling rig
HYDRIL CO93 citations95
US4524832AJun 25, 1985
Diverter/BOP system and method for a bottom supported offshore drilling rig
HYDRIL CO76 citations95
US4456062AJun 26, 1984
Flow diverter
HYDRIL CO65 citations92