Inventor · disambiguated record

Doug Blackburn

Also filed as: BLACKBURN DOUG

2 granted patents·7 citations·filing 2014–2015

53Inventor score

Technology areasE21B Y02W

Files withUNITED STATES GYPSUM CO2

Top patents by PatentIndex Score

2 records

0176US9944556B2Compositions with synthetic gypsum and methodsUNITED STATES GYPSUM CO·Filed 2014·Granted Apr 17, 2018·4 cites·7 claims
0276US9346996B1Oil well cementing products with synthetic gypsum and methodsUNITED STATES GYPSUM CO·Filed 2015·Granted May 24, 2016·3 cites·11 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →