Inventor · disambiguated record
John Cobb
Also filed as: COBB JOHN · COBB JOHN M · COBB JOHN MITCHEL
3 granted patents·2 pending applications·90 citations·filing 2003–2008
75Inventor score
Technology areasE21B
Top patents by PatentIndex Score
5 records- 0178US7814995B2Hydraulic jar and an overpressure relief mechanism thereforNAT OILWELL VARCO LP·Filed 2008·Granted Oct 19, 2010·19 cites·22 claims
- 0278US7228914B2Interventionless reservoir control systemsBAKER HUGHES INC·Filed 2004·Granted Jun 12, 2007·52 cites·20 claims
- 0356US7219743B2Method and apparatus to isolate a wellbore during pump workoverBAKER HUGHES INC·Filed 2004·Granted May 22, 2007·19 cites·17 claims
- 0438US2007119599A1Interventionless Reservoir Control SystemsBAKER HUGHES INC·Filed 2007·Application pending·0 cites
- 0529US2004238185A1Selective running tool with separation featureFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →