U.S. Patent 8179381 was awarded to 3M Innovative Properties Company on 2012-05-15 and describes a “Touch screen sensor.” This patent has been cited 284 times by other U.S. patents which places it in the top 500 cited patents since 2010 according to our law firm research, and makes it of the most innovative computer technology patents in the field of electrical engineering. The abstract states:
A touch screen sensor includes a visible light transparent substrate and an electrically conductive micropattern disposed on or in the visible light transparent substrate. The micropattern includes a first region micropattern within a touch sensing area and a second region micropattern. The first region micropattern has a first sheet resistance value in a first direction, is visible light transparent, and has at least 90% open area. The second region micropattern has a second sheet resistance value in the first direction. The first sheet resistance value is different from the second sheet resistance value. Link: U.S. Patent 8179381
This patent was originally filed on 2009-02-26 which gives it a processing time of 1174 days, compared to an average processing time of 1407 in the field. 3M Innovative Properties Company has 9971 total patents. The first named inventor is Matthew H. Frey of Cottage Grove, MN. The primary examiner was Adam R Giesy.
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