Assignee
GRABLE DONOVAN B
5 granted patents·178 citations·filing 1976–1985
Top patents by PatentIndex Score
5 records- 0179US4071085AWell head sealing systemGRABLE DONOVAN B·Filed 1976·Granted Jan 31, 1978·59 cites·26 claims
- 0279US4024913AWell installations employing non-metallic lines, tubing casing and machineryGRABLE DONOVAN B·Filed 1976·Granted May 24, 1977·48 cites·15 claims
- 0365US4497519AMetal particle recovery at sub-surface locationsGRABLE DONOVAN B·Filed 1982·Granted Feb 5, 1985·18 cites·8 claims
- 0462US4637462ALiquid mud ring control of underground liquidsGRABLE DONOVAN B·Filed 1985·Granted Jan 20, 1987·35 cites·20 claims
- 0553US4585274AMineral and metal particle recovery apparatus and methodGRABLE DONOVAN B·Filed 1984·Granted Apr 29, 1986·18 cites·9 claims
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