Inventor
SIVLEY IV ROBERT S
US19 patents
⚠️ This page may combine multiple inventors who share the name “SIVLEY IV ROBERT S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HYDRIL CO
9 patentsUS6607220B2Aug 19, 2003
Radially expandable tubular connection
HYDRIL CO185 citations98
US6622797B2Sep 23, 2003
Apparatus and method to expand casing
HYDRIL CO131 citations97
US8029025B1Oct 4, 2011
Single taper wedge thread connection with mid-seal
HYDRIL CO30 citations90
US6530607B1Mar 11, 2003
Two-step threaded connector having differential thread width
HYDRIL CO28 citations90
US6554287B1Apr 29, 2003
Collapsing type seal for expandable tubular connections
HYDRIL CO54 citations87
US7469938B2Dec 30, 2008
Threaded connection especially for radically plastically expandable conduit
HYDRIL CO15 citations84
US7380840B2Jun 3, 2008
Expandable threaded connection
HYDRIL CO18 citations84
US7475917B2Jan 13, 2009
Threaded connection with variable flank angles
HYDRIL CO16 citations79
US7383888B2Jun 10, 2008
Expansion pig
HYDRIL CO7 citations73
HYDRIL LLC
5 patentsUS7478842B2Jan 20, 2009
Coupled connection with an externally supported pin nose seal
HYDRIL LLC36 citations92
US7527304B2May 5, 2009
Floating wedge thread for tubular connection
HYDRIL LLC22 citations91
US7607333B2Oct 27, 2009
Helical groove for a tubular connection
HYDRIL LLC12 citations84
US7686350B2Mar 30, 2010
Mismatched flanks for a wedge thread
HYDRIL LLC7 citations73
US7578039B2Aug 25, 2009
Dope relief method for wedge thread connections
HYDRIL LLC4 citations62