Inventor
SHAHIN DAVID
US20 patents
⚠️ This page may combine multiple inventors who share the name “SHAHIN DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WEATHERFORD LAMB
18 patentsUS7325610B2Feb 5, 2008
Methods and apparatus for handling and drilling with tubulars or casing
WEATHERFORD LAMB147 citations98
US6994176B2Feb 7, 2006
Adjustable rotating guides for spider or elevator
WEATHERFORD LAMB93 citations98
US6892835B2May 17, 2005
Flush mounted spider
WEATHERFORD LAMB94 citations98
US6536520B1Mar 25, 2003
Top drive casing system
WEATHERFORD LAMB313 citations98
US7712523B2May 11, 2010
Top drive casing system
WEATHERFORD LAMB71 citations97
US7654325B2Feb 2, 2010
Methods and apparatus for handling and drilling with tubulars or casing
WEATHERFORD LAMB48 citations97
US7140445B2Nov 28, 2006
Method and apparatus for drilling with casing
WEATHERFORD LAMB97 citations97
US7143849B2Dec 5, 2006
Flush mounted spider
WEATHERFORD LAMB51 citations96
US7509722B2Mar 31, 2009
Positioning and spinning device
WEATHERFORD LAMB61 citations95
US7694744B2Apr 13, 2010
One-position fill-up and circulating tool and method
WEATHERFORD LAMB37 citations92
US7503397B2Mar 17, 2009
Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly
WEATHERFORD LAMB46 citations92
US7448456B2Nov 11, 2008
Adjustable rotating guides for spider or elevator
WEATHERFORD LAMB38 citations92
US7296623B2Nov 20, 2007
Methods and apparatus for applying torque and rotation to connections
WEATHERFORD LAMB51 citations92
US8020627B2Sep 20, 2011
Equalized load distribution slips for spider and elevator
WEATHERFORD LAMB7 citations84
US7686088B2Mar 30, 2010
Equalized load distribution slips for spider and elevator
WEATHERFORD LAMB15 citations84
US7594540B2Sep 29, 2009
Methods and apparatus for applying torque and rotation to connections
WEATHERFORD LAMB13 citations83
US7665551B2Feb 23, 2010
Flush mounted spider
WEATHERFORD LAMB1 citations63
US7845418B2Dec 7, 2010
Top drive torque booster
WEATHERFORD LAMB1 citations52