Inventor
PEDERSEN GERALD DEAN
US8 patents
Patents
8 patentsUS6715541B2Apr 6, 2004
Ball dropping assembly
WEATHERFORD LAMB104 citations96
US6908121B2Jun 21, 2005
Locking arrangement for a threaded connector
WEATHERFORD LAMB52 citations95
US6672384B2Jan 6, 2004
Plug-dropping container for releasing a plug into a wellbore
WEATHERFORD LAMB69 citations94
US6571869B1Jun 3, 2003
Downhole surge pressure reduction and filtering apparatus
WEATHERFORD LAMB43 citations94
US7487831B2Feb 10, 2009
Downhole surge pressure reduction and filtering apparatus
WEATHERFORD LAMB10 citations91
US6966375B2Nov 22, 2005
Downhole surge pressure reduction and filtering apparatus
WEATHERFORD LAMB6 citations72
US7270181B2Sep 18, 2007
Downhole surge pressure reduction and filtering apparatus
WEATHERFORD LAMB2 citations61
US6755252B2Jun 29, 2004
Downhole surge pressure reduction and filtering apparatus
WEATHERFORD LAMB0 citations50