Inventor
MACKAY ALEXANDER CRAIG
GB28 patents
⚠️ This page may combine multiple inventors who share the name “MACKAY ALEXANDER CRAIG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WEATHERFORD LAMB
17 patentsUS7367404B2May 6, 2008
Tubing seal
WEATHERFORD LAMB23 citations96
US6655459B2Dec 2, 2003
Completion apparatus and methods for use in wellbores
WEATHERFORD LAMB44 citations96
US7377325B2May 27, 2008
Centraliser
WEATHERFORD LAMB39 citations92
US7077210B2Jul 18, 2006
Expansion method
WEATHERFORD LAMB23 citations92
US6971450B2Dec 6, 2005
Completion apparatus and methods for use in wellbores
WEATHERFORD LAMB13 citations92
US7172027B2Feb 6, 2007
Expanding tubing
WEATHERFORD LAMB38 citations91
US6896052B2May 24, 2005
Expanding tubing
WEATHERFORD LAMB32 citations91
US7370708B2May 13, 2008
Seal arrangement
WEATHERFORD LAMB19 citations88
US7090024B2Aug 15, 2006
Tubing anchor
WEATHERFORD LAMB11 citations82
US7086480B2Aug 8, 2006
Tubing anchor
WEATHERFORD LAMB15 citations82
US7322420B2Jan 29, 2008
Tubing expansion
WEATHERFORD LAMB14 citations81
US7219745B2May 22, 2007
Completion apparatus and methods for use in wellbores
WEATHERFORD LAMB6 citations74
US7140444B2Nov 28, 2006
Downhole cutting tool and method
WEATHERFORD LAMB10 citations74
US7073602B2Jul 11, 2006
Tubing injector
WEATHERFORD LAMB8 citations73
US6820687B2Nov 23, 2004
Auto reversing expanding roller system
WEATHERFORD LAMB9 citations73
US7140442B2Nov 28, 2006
Tubing injector
WEATHERFORD LAMB4 citations63
US7481272B2Jan 27, 2009
Completion apparatus and methods for use in wellbores
WEATHERFORD LAMB0 citations52
DOWNHOLE PRODUCTS LTD
8 patentsUS11428073B2Aug 30, 2022
Overpressure toe valve with atmospheric chamber
DOWNHOLE PRODUCTS LTD2 citations73
US11203902B2Dec 21, 2021
Guide shoe with lockable nose
DOWNHOLE PRODUCTS LTD3 citations69
US11286729B2Mar 29, 2022
Slimline stop collar
DOWNHOLE PRODUCTS LTD3 citations68
US11920432B2Mar 5, 2024
Toe valve with vented atmospheric chamber
DOWNHOLE PRODUCTS LTD1 citations62
US12012812B2Jun 18, 2024
Dual flow converted auto-fill float valve
DOWNHOLE PRODUCTS LTD0 citations59
US11486228B2Nov 1, 2022
Resettable toe valve
DOWNHOLE PRODUCTS LTD0 citations52
US12312879B2May 27, 2025
Rasping shoe for non-rotational deployment of casing string
DOWNHOLE PRODUCTS LTD0 citations49
US12270262B2Apr 8, 2025
Float equipment for use with composite casing or liner string
DOWNHOLE PRODUCTS LTD0 citations49