VPL RESEARCH INC innovation strategy

Patent filings in countries

#	Country	Total Patents
#1	United States	11
#2	WIPO (World Intellectual Property Organization)	11
#3	EPO (European Patent Office)	3
#4	Canada	2

#	Technology
#1	Electric digital data processing
#2	Teaching materials
#3	Diagnosis and surgery
#4	Special measuring
#5	Unspecified technologies
#6	Measuring length, angles and areas
#7	Display controls
#8	Image data processing
#9	Optical systems
#10	Stereophonic systems

Publication	Filing date	Title
WO9509411A1	1994-09-29	Method and apparatus for displaying a virtual world
US5588139A	1993-10-08	Method and system for generating objects for a multi-person virtual world using data flow networks
US5521373A	1993-10-06	Position tracking system using a radiation director which directs radiation from a radiation source onto a radiation sensor, depending on the position of the radiation source
CA2112682A1	1992-07-01	Virtual image display device
WO9209983A1	1991-12-02	Radio frequency tracking system
WO9209984A1	1991-12-02	Low cost virtual reality system
WO9209963A1	1991-11-29	System for creating a virtual world
WO9209947A1	1991-11-29	Method and apparatus for rendering graphical images
WO9209921A1	1991-11-29	Improved method and apparatus for creating sounds in a virtual world
WO9209904A1	1991-11-29	Absolute position tracker
WO9209948A1	1991-11-29	Improved method and apparatus for creating virtual worlds
US5097252A	1989-10-26	Motion sensor which produces an asymmetrical signal in response to symmetrical movement
US4937444A	1989-10-05	Optical flex sensor
EP0352291A1	1988-03-23	Motion sensor
EP0211984A1	1985-08-19	Computer data entry and manipulation apparatus
US4542291A	1982-09-29	Optical flex sensor