Inventor · disambiguated record
Stefan Alexandru Stoian
Also filed as: STOIAN STEFAN ALEXANDRU
6 granted patents·8 citations·filing 2008–2020
74Inventor score
Top patents by PatentIndex Score
6 records- 0174US7989399B2Drilling fluid and methodsTECHSTAR ENERGY SERVICES INC·Filed 2008·Granted Aug 2, 2011·7 cites·21 claims
- 0265US11591506B2Method for making and using a drilling fluidCANADIAN ENERGY SERVICES LP·Filed 2020·Granted Feb 28, 2023·0 cites·30 claims
- 0364US8338340B2Drilling fluid and methodsSTOIAN STEFAN ALEXANDRU·Filed 2011·Granted Dec 25, 2012·1 cites·17 claims
- 0463US10876027B2Method for making and using a drilling fluidCANADIAN ENERGY SERVICES LP·Filed 2016·Granted Dec 29, 2020·0 cites·10 claims
- 0557US10738229B2Drilling fluid and method for drilling in coal-containing formationsCANADIAN ENERGY SERVICES LP·Filed 2013·Granted Aug 11, 2020·0 cites·8 claims
- 0651US8387723B2Drilling fluid and method for drilling in coal-containing formationsSTOIAN STEFAN ALEXANDRU·Filed 2008·Granted Mar 5, 2013·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →