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POLHEMUS INC

US8 patents

Top patents by PatentIndex Score

US5640170AJun 17, 1997

Position and orientation measuring system having anti-distortion source configuration

POLHEMUS INC281 citations99
US5453686ASep 26, 1995

Pulsed-DC position and orientation measurement system

POLHEMUS INC377 citations97
US5307072AApr 26, 1994

Non-concentricity compensation in position and orientation measurement systems

POLHEMUS INC388 citations96
US6400139B1Jun 4, 2002

Methods and apparatus for electromagnetic position and orientation tracking with distortion compensation

POLHEMUS INC136 citations95
US6762600B2Jul 13, 2004

Method and apparatus for electromagnetic position and orientation tracking with distortion compensation employing a modulated signal

POLHEMUS INC45 citations94
US6624626B2Sep 23, 2003

Method and apparatus for electromagnetic position and orientation tracking with distortion compensation employing modulated signal

POLHEMUS INC63 citations94
US6377041B1Apr 23, 2002

Method and apparatus for determining electromagnetic field characteristics within a volume

POLHEMUS INC62 citations94
US6369564B1Apr 9, 2002

Electromagnetic position and orientation tracking system with distortion compensation employing wireless sensors

POLHEMUS INC118 citations92