Inventor · disambiguated record

Donald K. Macqueen

Also filed as: MACQUEEN DONALD K

2 granted patents·41 citations·filing 1981–1982

63Inventor score

Technology areasC10G

Files withPHILLIPS PETROLEUM CO2

Top patents by PatentIndex Score

2 records

0174US4381992AReclaiming used lubricating oilPHILLIPS PETROLEUM CO·Filed 1981·Granted May 3, 1983·28 cites·4 claims
0254US4406743AFractionation column for reclaiming used lubricating oilPHILLIPS PETROLEUM CO·Filed 1982·Granted Sep 27, 1983·13 cites·9 claims

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