Editing MathWorks (section)

===Intellectual property and competition===
In 1999, the U.S. Department of Justice filed a lawsuit against MathWorks and [[Wind River Systems]] alleging that an agreement between them violated [[antitrust]] laws. The agreement in question stipulated that the two companies agreed to stop competing in the field of dynamic control system design software, with MathWorks alone selling Wind River's MATRIXx Software and that Wind River would stop all research and development and sales in that field. Both companies eventually settled with the Department of Justice and agreed to sell the MATRIXx software to a third party.  MathWorks had total sales of $200 million in 2001, with dynamic control system design software accounting for half of those sales.<ref>{{cite news|title=Press release: Justice Department Reaches Settlement with The MathWorks Inc.|url=https://www.justice.gov/archive/atr/public/press_releases/2002/200164.htm|work=US Department of Justice|date=August 15, 2002}}</ref>

MathWorks's Simulink software was found to have infringed 3 patents from [[National Instruments]] related to data flow diagrams in 2003, a decision which was confirmed by a court of appeal in 2004.<ref>{{cite news|title=Federal Circuit Affirms Decision For National Instruments In Patent Suit Vs. Mathworks|url=https://www.law360.com/articles/2115/federal-circuit-affirms-decision-for-national-instruments-in-patent-suit-vs-mathworks|work=Law360|date=September 7, 2004|language=en}}</ref>

In 2011, MathWorks sued [[AccelerEyes]] for copyright infringement in one court, and patent and trademark infringement in another. AccelerEyes accepted [[consent decree]]s in both cases before the trials began.<ref>{{cite news|title=MathWorks wins copyright and patent infringement cases|url=http://www.jonesday.com/experiencepractices/ExperienceDetail.aspx?experienceid=29028|access-date=16 September 2017|work=Jones Day}}</ref>

In 2012, the European Commission opened an [[antitrust]] investigation into MathWorks after competitors alleged that MathWorks refused to grant licenses to its intellectual property that would allow people to create software with [[interoperability]] with its products.<ref>{{cite news|title=Commission opens interoperability proceedings against MathWorks|url=http://kwm.com/en/uk/knowledge/insights/commission-opens-interoperability-proceedings-against-mathworks-20120302|work=King & Wood Mallesons|date=2012|language=en}}</ref><ref>{{cite web|title=Opening of Proceedings|url=http://ec.europa.eu/competition/antitrust/cases/dec_docs/39840/39840_1005_4.pdf|publisher=European Commission|date=29 February 2012}}</ref> The case was closed in 2014 without filing any charge.<ref>{{cite web|title=Closing of Proceedings |url=http://ec.europa.eu/competition/antitrust/cases/dec_docs/39840/39840_1248_3.pdf|publisher=European Commission|quote=''The Commission decided, as a result of the formal investigation, to close the antitrust proceedings initiated on 29 February 2012 against MathWorks in case AT.39840.''|date=2 September 2014}}</ref>