Inventor
HEFNER DON
US10 patents
Patents
10 patentsUS9179860B2Nov 10, 2015
Determining a location of a member
MARKOWITZ H TOBY77 citations98
US8494608B2Jul 23, 2013
Method and apparatus for mapping a structure
MARKOWITZ H TOBY100 citations98
US8260395B2Sep 4, 2012
Method and apparatus for mapping a structure
MARKOWITZ H TOBY126 citations98
US8214018B2Jul 3, 2012
Determining a flow characteristic of a material in a structure
MARKOWITZ H TOBY114 citations98
US8831701B2Sep 9, 2014
Uni-polar and bi-polar switchable tracking system between
MARKOWITZ H TOBY55 citations97
US8340751B2Dec 25, 2012
Method and apparatus for determining tracking a virtual point defined relative to a tracked member
MARKOWITZ H TOBY95 citations97
US8843189B2Sep 23, 2014
Interference blocking and frequency selection
MARKOWITZ H TOBY13 citations92
US8768434B2Jul 1, 2014
Determining and illustrating a structure
MARKOWITZ H TOBY10 citations92
US8660640B2Feb 25, 2014
Determining a size of a representation of a tracked member
MARKOWITZ H TOBY20 citations92
US9332928B2May 10, 2016
Method and apparatus to synchronize a location determination in a structure with a characteristic of the structure
MARKOWITZ H TOBY4 citations84