Inventor · disambiguated record

Douglas M. Crume

Also filed as: CRUME DOUGLAS M

2 granted patents·52 citations·filing 1990–1992

64Inventor score

Technology areasE21B

Files withDELTA X CORP2

Top patents by PatentIndex Score

2 records

0161US5167490AMethod of calibrating a well pumpoff controllerDELTA X CORP·Filed 1992·Granted Dec 1, 1992·41 cites·6 claims
0233US5064348ADetermination of well pumping system downtimeDELTA X CORP·Filed 1990·Granted Nov 12, 1991·11 cites·11 claims

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