Assignee
BLACK JOHN B
US·2 granted patents·73 citations·filing 1986–1986
Top patents by PatentIndex Score
2 records- 0164US4658893AJet pump with reverse flow removal of injection nozzleBLACK JOHN B·Filed 1986·Granted Apr 21, 1987·39 cites·20 claims
- 0261US4718486APortable jet pump system with pump lowered down hole and raised with coiled pipe and return lineBLACK JOHN B·Filed 1986·Granted Jan 12, 1988·34 cites·18 claims
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