Assignee
ERAP
7 patents
Top patents by PatentIndex Score
US4092255AMay 30, 1978
Novel lubricating compositions containing nitrogen containing hydrocarbon backbone polymeric additives
ERAP63 citations93
US3953827AApr 27, 1976
Method of determining the angular position of a towed marine seismic cable and apparatus for carrying out said method
ERAP48 citations87
US4053022AOct 11, 1977
Device for guiding a drilling string during underwater drilling
ERAP22 citations76
US3960764AJun 1, 1976
Catalytic composition for the conversion of hydrocarbons
ERAP13 citations66
US4080398AMar 21, 1978
Process for preparing catalysts for use in olefins conversion reactions
ERAP3 citations58
US3944824AMar 16, 1976
Method and device for sampling gases
ERAP9 citations58
US4062402ADec 13, 1977
Method and apparatus for connecting a riser pipe to blow out preventer stack at the head of an oil well
ERAP4 citations53