US patents

 

patent number & title

• 8,086,026   Method and system for the determination of object positions in a volume

• 7,865,236   Active electrode, bio-impedance based, tissue discrimination system and methods of use

• 7,623,250   Enhanced shape characterization device and method

• 7,336,375   Wireless methods and systems for three-dimensional non-contact shape sensing

• 7,256,899   Wireless methods and systems for three-dimensional non-contact shape sensing

• RE39,102   Optical fiber probe for position measurement

• 7,049,594   Position sensing sensor, method and system

• 6,611,141   Hybrid 3-D probe tracked by multiple sensors

• 6,608,688   Wireless optical instrument for position measurement and method of use therefor

• 6,442,416   Determination of the position and orientation of at least one object in space

• 6,141,104   System for determination of a location in three dimensional space

• 5,987,349   Method for determining the position and orientation of two moveable objects in three-dimensional space

• 5,920,395   System for locating relative positions of objects in three dimensional space

• 5,907,395   Optical fiber probe for position measurement

• RE35,816   Method and apparatus for three-dimensional non-contact shape sensing

• 5,622,170   Apparatus for determining the position and orientation of an invasive portion of a probe inside a three-dimensional body

• 5,617,857   Imaging system having interactive medical instruments and methods

• 5,198,877   Method and apparatus for three-dimensional non-contact shape sensing

       (Some of the above have equivalent international filings.)

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abandoned unissued patent now public property

• 20080247532   Method and System for Representing Quantitative Properties in a Computer Program and for Validating Dimensional Integrity of Mathematical Expressions

       (The above system is now public. A patent would have issued, but the final fee was not paid.)