Inventor
FOLK STEVEN LORNE
CA13 patents
Patents
13 patentsUSD543833SJun 5, 2007
Support link
VARCO INT60 citations97
US7231969B2Jun 19, 2007
Wellbore top drive power systems and methods of use
VARCO INT52 citations95
US7188686B2Mar 13, 2007
Top drive systems
VARCO INT54 citations95
US7320374B2Jan 22, 2008
Wellbore top drive systems
VARCO INT49 citations92
US7228913B2Jun 12, 2007
Tubular clamp apparatus for top drives and methods of use
VARCO INT24 citations92
US7222683B2May 29, 2007
Wellbore top drive systems
VARCO INT25 citations92
USD533196SDec 5, 2006
Guard for derrick apparatus
VARCO INT6 citations73
USD532798SNov 28, 2006
Guard for derrick apparatus
VARCO INT5 citations73
USD523210SJun 13, 2006
Block becket for use in a wellbore derrick
VARCO INT6 citations73
USD524833SJul 11, 2006
Access platform for a well top drive system
VARCO INT5 citations62
USD523451SJun 20, 2006
Support link for wellbore apparatus
VARCO INT4 citations62
USD519136SApr 18, 2006
Swivel body for a top drive in a wellbore derrick
VARCO INT2 citations62
USD524334SJul 4, 2006
Swivel body for a well top drive system
VARCO INT0 citations51