Inventor · disambiguated record
Alan Hemphill
Also filed as: HEMPHILL ALAN T · HEMPHILL ALAN TERRY
4 granted patents·77 citations·filing 2001–2004
79Inventor score
Technology areasE21B
Files withHALLIBURTON ENERGY SERV INC4
Top patents by PatentIndex Score
4 records- 0175US6829947B2Acoustic Doppler downhole fluid flow measurementHALLIBURTON ENERGY SERV INC·Filed 2003·Granted Dec 14, 2004·39 cites·10 claims
- 0261US6938458B2Acoustic doppler downhole fluid flow measurementHALLIBURTON ENERGY SERV INC·Filed 2004·Granted Sep 6, 2005·20 cites·4 claims
- 0348US6662884B2Method for determining sweep efficiency for removing cuttings from a boreholeHALLIBURTON ENERGY SERV INC·Filed 2001·Granted Dec 16, 2003·12 cites·9 claims
- 0440US6986396B2Method for determining sweep efficiency for removing cuttings from a boreholeHALLIBURTON ENERGY SERV INC·Filed 2003·Granted Jan 17, 2006·6 cites·7 claims
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