Inventor · disambiguated record
W. Andrew Liao
Also filed as: LIAO W ANDREW
5 granted patents·303 citations·filing 1996–2001
86Inventor score
Top patents by PatentIndex Score
5 records- 0189US5723416AWell servicing fluid for trenchless directional drillingFiled 1997·Granted Mar 3, 1998·108 cites·12 claims
- 0287US6502636B2Methods and compositions for grouting heat exchange pipeHALLIBURTON ENERGY SERV INC·Filed 2001·Granted Jan 7, 2003·68 cites·14 claims
- 0387US6258160B1Methods and compositions for grouting heat exchange pipeHALLIBURTON ENERGY SERV INC·Filed 1999·Granted Jul 10, 2001·53 cites·3 claims
- 0475US5955401AClay-free biodegradable wellbore fluid and method for using same fluidBAROID TECHNOLOGY INC·Filed 1996·Granted Sep 21, 1999·41 cites·4 claims
- 0571US6105674AComposition and method for recovering lost circulation and sealing earth boreholes and cavitiesDRESSER IND·Filed 1998·Granted Aug 22, 2000·33 cites·41 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →