Darrell Mathis — 4 Patents at Etak

Darrell Mathis has been granted 4 US patents while listed as an inventor at Etak. The first was granted in 1994 and the most recent in November 2008. Darrell Mathis ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Darrell Mathis in San Francisco, CA, US.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
7458037	System and method for associating text and graphical views of map information	Gil Fuchs	2008-11-25
7103854	System and method for associating text and graphical views of map information	Gil Fuchs	2006-09-05
5948043	Navigation system using GPS data	—	1999-09-07
5311195	Combined relative and absolute positioning method and apparatus	Richard F. Poppen, Kenneth A. Milnes	1994-05-10

Darrell Mathis — 4 Patents

Issued Patents All Time

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