Market Overview

3M Files Additional Lawsuit to Enforce Its Patent Rights in Metal Mesh Conductor Technology Used in Touch Screens


3M and 3M Innovative Properties Co. filed a patent infringement lawsuit
today in federal district court in Las Vegas, Nev., against South
Korea-based Tovis Co. Ltd. and its subsidiary Tovis North America, and
Scientific Games Corporation.

The suit alleges that certain Tovis touch display products which are
used by Scientific Games in their gaming machines infringe 3M's U.S.
Patents 8,179,381; 9,823,786; 8,274,494; and 8,704,799.

Metal mesh conductor technology is widely used in the construction of
projected capacitive touch sensors for consumer and commercial
applications. Metal mesh conductors have broad applicability for use in
curved and flat sensors for casino slot machines, and in pen touch
systems for consumer tablets and convertible devices. The technology is
also used in large format touch sensors for digital signage and
interactive whiteboards and conferencing systems.

Earlier this year, 3M filed a similar patent infringement lawsuit
against Elo Touch Solutions Inc.

"3M invests substantially in research and development to create
innovative products for our customers," said Makoto Ishii, vice
president and general manager, 3M Display Materials and Systems
Division. "We will defend our intellectual property protecting those
investments against unauthorized use and infringement by metal mesh
manufacturers, original equipment manufacturers, and others making use
of 3M's intellectual property rights."

Learn more about 3M Touch Systems at

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