Inventor · disambiguated record

M. Douglas Mcgregor

Also filed as: MCGREGOR M DOUGLAS

2 granted patents·159 citations·filing 2002–2008

64Inventor score

Technology areasE21B

Files withHALLIBURTON ENERGY SERV INC1 MCGREGOR M DOUGLAS1

Top patents by PatentIndex Score

2 records

0193US6909667B2Dual channel downhole telemetryHALLIBURTON ENERGY SERV INC·Filed 2002·Granted Jun 21, 2005·157 cites·54 claims
0238US8106659B2In situ measurements in formation testing to determine true formation resistivityMCGREGOR M DOUGLAS·Filed 2008·Granted Jan 31, 2012·2 cites·20 claims

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