Assignee
ERAP
7 granted patents·162 citations·filing 1974–1977
Top patents by PatentIndex Score
7 records- 0191US4092255ANovel lubricating compositions containing nitrogen containing hydrocarbon backbone polymeric additivesERAP·Filed 1975·Granted May 30, 1978·63 cites·18 claims
- 0286US3953827AMethod of determining the angular position of a towed marine seismic cable and apparatus for carrying out said methodERAP·Filed 1974·Granted Apr 27, 1976·48 cites·11 claims
- 0379US3960764ACatalytic composition for the conversion of hydrocarbonsERAP·Filed 1974·Granted Jun 1, 1976·13 cites·6 claims
- 0454US4053022ADevice for guiding a drilling string during underwater drillingERAP·Filed 1975·Granted Oct 11, 1977·22 cites·13 claims
- 0533US3944824AMethod and device for sampling gasesERAP·Filed 1974·Granted Mar 16, 1976·9 cites·8 claims
- 0631US4080398AProcess for preparing catalysts for use in olefins conversion reactionsERAP·Filed 1977·Granted Mar 21, 1978·3 cites·16 claims
- 0724US4062402AMethod and apparatus for connecting a riser pipe to blow out preventer stack at the head of an oil wellERAP·Filed 1976·Granted Dec 13, 1977·4 cites·9 claims
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