Inventor · disambiguated record
R. Ashley Donaldson
Also filed as: DONALDSON R ASHLEY
7 granted patents·677 citations·filing 2000–2007
90Inventor score
Files withHALLIBURTON ENERGY SERV INC7
Top patents by PatentIndex Score
7 records- 0198US6543545B1Expandable sand control device and specialized completion system and methodHALLIBURTON ENERGY SERV INC·Filed 2000·Granted Apr 8, 2003·319 cites·24 claims
- 0292US7108083B2Apparatus and method for completing an interval of a wellbore while drillingHALLIBURTON ENERGY SERV INC·Filed 2003·Granted Sep 19, 2006·108 cites·33 claims
- 0389US7048048B2Expandable sand control screen and method for use of sameHALLIBURTON ENERGY SERV INC·Filed 2003·Granted May 23, 2006·95 cites·32 claims
- 0489US6766862B2Expandable sand control device and specialized completion system and methodHALLIBURTON ENERGY SERV INC·Filed 2003·Granted Jul 27, 2004·84 cites·26 claims
- 0584US6562764B1Invert well service fluid and methodHALLIBURTON ENERGY SERV INC·Filed 2000·Granted May 13, 2003·43 cites·13 claims
- 0682US7222672B2Wellbore fluids containing additives for removing a filter cake and methods of using the sameHALLIBURTON ENERGY SERV INC·Filed 2004·Granted May 29, 2007·22 cites·19 claims
- 0780US7939474B2Wellbore fluids containing additives for removing a filter cake and methods of using the sameHALLIBURTON ENERGY SERV INC·Filed 2007·Granted May 10, 2011·6 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →