Inventor
NG SHIU S
US23 patents
⚠️ This page may combine multiple inventors who share the name “NG SHIU S”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DIGITAL CONTROL INC
10 patentsUS6250402B1Jun 26, 2001
Establishing positions of locating field detectors and path mappings in underground boring tool applications
DIGITAL CONTROL INC95 citations99
US6035951AMar 14, 2000
System for tracking and/or guiding an underground boring tool
DIGITAL CONTROL INC237 citations99
US6005532ADec 21, 1999
Orthogonal antenna arrangement and method
DIGITAL CONTROL INC148 citations99
US6285190B1Sep 4, 2001
Skin depth compensation in underground boring applications
DIGITAL CONTROL INC137 citations98
US6095260AAug 1, 2000
System, arrangements and associated methods for tracking and/or guiding an underground boring tool
DIGITAL CONTROL INC51 citations96
US6047783AApr 11, 2000
Systems, arrangements and associated methods for tracking and/or guiding an underground boring tool
DIGITAL CONTROL INC58 citations96
US6536538B2Mar 25, 2003
Establishing positions of locating field detectors and path mapping in underground boring tool applications
DIGITAL CONTROL INC20 citations92
US6457537B1Oct 1, 2002
Mapping tool for tracking and/or guiding an underground boring tool
DIGITAL CONTROL INC16 citations92
US6454023B1Sep 24, 2002
Mapping tool for tracking and/or guiding an underground boring tool
DIGITAL CONTROL INC18 citations92
US6364035B2Apr 2, 2002
Establishing positions of locating field detectors and path mapping in underground boring tool applications
DIGITAL CONTROL INC17 citations92
MERLIN TECHNOLOGY INC
10 patentsUS6668944B2Dec 30, 2003
Path mapping in underground boring tool applications
MERLIN TECHNOLOGY INC32 citations96
US7562722B2Jul 21, 2009
Method and apparatus for establishing the position of a sonde in a region using a single detector
MERLIN TECHNOLOGY INC9 citations92
US7347280B2Mar 25, 2008
Establishing positions of locating field detectors and path mapping in underground boring tool applications
MERLIN TECHNOLOGY INC14 citations92
US7159672B2Jan 9, 2007
Mapping tool for tracking and/or guiding an underground boring tool
MERLIN TECHNOLOGY INC13 citations92
US7080698B2Jul 25, 2006
Mapping tool for tracking and/or guiding an underground boring tool
MERLIN TECHNOLOGY INC16 citations92
US7021403B2Apr 4, 2006
Method of establishing positions of locating field detectors and path mapping in underground boring tool applications
MERLIN TECHNOLOGY INC11 citations92
US6920943B2Jul 26, 2005
Mapping tool for tracking and/or guiding an underground boring tool
MERLIN TECHNOLOGY INC18 citations92
US6640907B2Nov 4, 2003
Mapping tool for tracking and/or guiding an underground boring tool
MERLIN TECHNOLOGY INC22 citations92
US8025109B2Sep 27, 2011
Method for establishing the positions of a transmitter and detector in a region
MERLIN TECHNOLOGY INC7 citations84
US8668030B2Mar 11, 2014
Establishing positions of locating field detectors and path mapping in underground boring tool applications
MERLIN TECHNOLOGY INC2 citations63