In April of 2009, Taiwanese chip and touch screen maker Elan Microelectronics Corp. filed a lawsuit against Apple, claiming that the Cupertino-based company had infringed upon many of its touch-based patents. Apple counterclaimed in a Northern California district court with allegations that Elan had violated multiple Apple patents itself.
The patent in question, U.S. Patent Number 5,825,352, is described as a "multiple fingers contact sensing method for emulating mouse buttons and mouse operations on a touch sensor pad." The U.S. International Trade Commission investigated the claims in April 2010, but ultimately ruled in June 2010 that Elan had failed to establish that Apple was violating the patent.
The case remained unresolved, until today...