Inventor · disambiguated record
Keith R. Ferguson
Also filed as: FERGUSON KEITH R · FERGUSON KEITH RANDALL
5 granted patents·395 citations·filing 1993–1998
85Inventor score
Technology areasE21B
Files withATLANTIC RICHFIELD CO5
Top patents by PatentIndex Score
5 records- 0189US5613557AApparatus and method for sealing perforated well casingATLANTIC RICHFIELD CO·Filed 1995·Granted Mar 25, 1997·207 cites·23 claims
- 0287US5456319AApparatus and method for blocking well perforationsATLANTIC RICHFIELD CO·Filed 1994·Granted Oct 10, 1995·122 cites·14 claims
- 0351US6116340ADownhole build-up pressure test using coiled tubingATLANTIC RICHFIELD CO·Filed 1998·Granted Sep 12, 2000·36 cites·3 claims
- 0443US5617921AOver-pressured well fracturing with surface reservoir and actuator systemATLANTIC RICHFIELD CO·Filed 1995·Granted Apr 8, 1997·20 cites·20 claims
- 0535US5370187AOver-pressured well fracturing methodATLANTIC RICHFIELD CO·Filed 1993·Granted Dec 6, 1994·10 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →