Inventor · disambiguated record
Ann M. W. Hoefer
Also filed as: HOEFER ANN M W
7 granted patents·1 pending application·368 citations·filing 2005–2010
88Inventor score
Technology areasC09K
Top patents by PatentIndex Score
8 records- 0198US7380600B2Degradable material assisted diversion or isolationSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Jun 3, 2008·125 cites·25 claims
- 0297US7775278B2Degradable material assisted diversion or isolationSCHLUMBERGER TECHNOLOGY CORP·Filed 2008·Granted Aug 17, 2010·81 cites·32 claims
- 0397US7398826B2Well treatment with dissolvable polymerSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Jul 15, 2008·78 cites·23 claims
- 0496US8167043B2Degradable material assisted diversion or isolationWILLBERG DEAN M·Filed 2008·Granted May 1, 2012·58 cites·27 claims
- 0590US8207094B2Wellbore treatment compositions containing foam extenders and methods of use thereofHUTCHINS RICHARD D·Filed 2008·Granted Jun 26, 2012·22 cites·18 claims
- 0671US7947627B2Fluid loss control agent with triggerable removal mechanismSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted May 24, 2011·4 cites·11 claims
- 0747US2007042913A1Wellbore treatment compositions containing foam extenders and methods of use thereofHUTCHINS RICHARD D·Filed 2005·Application pending·0 cites
- 0844US9139759B2Method of treating a subterranean formation with combined breaker and fluid loss additiveHUTCHINS RICHARD D·Filed 2010·Granted Sep 22, 2015·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →