Inventor
MCGILL HOWARD L
US16 patents
⚠️ This page may combine multiple inventors who share the name “MCGILL HOWARD L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SCHLUMBERGER TECHNOLOGY CORP
12 patentsUS6889771B1May 10, 2005
Selective direct and reverse circulation check valve mechanism for coiled tubing
SCHLUMBERGER TECHNOLOGY CORP91 citations96
US6776239B2Aug 17, 2004
Tubing conveyed fracturing tool and method
SCHLUMBERGER TECHNOLOGY CORP63 citations95
US7493960B2Feb 24, 2009
Apparatus and method to connect two parts without rotation
SCHLUMBERGER TECHNOLOGY CORP41 citations92
US5857710AJan 12, 1999
Multi-cycle releasable connection
SCHLUMBERGER TECHNOLOGY CORP39 citations92
US4424860AJan 10, 1984
Deflate-equalizing valve apparatus for inflatable packer formation tester
SCHLUMBERGER TECHNOLOGY CORP40 citations92
US4009753AMar 1, 1977
Subsea master valve apparatus
SCHLUMBERGER TECHNOLOGY CORP78 citations92
US7497259B2Mar 3, 2009
System and method for forming cavities in a well
SCHLUMBERGER TECHNOLOGY CORP27 citations91
US6533037B2Mar 18, 2003
Flow-operated valve
SCHLUMBERGER TECHNOLOGY CORP47 citations91
US7918279B2Apr 5, 2011
System and method for forming cavities in a well
SCHLUMBERGER TECHNOLOGY CORP10 citations83
US4408485AOct 11, 1983
Rotary straddle tester apparatus with safety joint back-off clutch
SCHLUMBERGER TECHNOLOGY CORP20 citations82
US4406461ASep 27, 1983
Inflatable well packer apparatus reinforced with tire cording
SCHLUMBERGER TECHNOLOGY CORP20 citations82
US4440230AApr 3, 1984
Full-bore well tester with hydrostatic bias
SCHLUMBERGER TECHNOLOGY CORP18 citations73