Inventor · disambiguated record

Erik Helsengreen

Also filed as: HELSENGREEN ERIK

2 granted patents·188 citations·filing 2005–2007

71Inventor score

Technology areasE21B

Files withBAKER HUGHES INC2

Top patents by PatentIndex Score

2 records

0194US7409999B2Downhole inflow control device with shut-off featureBAKER HUGHES INC·Filed 2005·Granted Aug 12, 2008·144 cites·22 claims
0289US7823645B2Downhole inflow control device with shut-off featureBAKER HUGHES INC·Filed 2007·Granted Nov 2, 2010·44 cites·22 claims

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