Apple, Inc. was hit with a patent infringement lawsuit Thursday (read it below) alleging that the company’s iPad 3 tablets and Macbook Pro computers violate four light emitting diode (LED) patents. The case was filed in in federal court in Delaware by claimed patent holder LED Tech Development LLC, a Delaware limited liability company based in Tyler, Texas, the city that is a patent litigator’s combat zone.
Each of the four infringement claims, the complaint charges, involve Apple “products utilizing pulse-width modulation signals to drive light-emitting diodes.” Apple’s newest iPad a/k/a the ‘iPad 3,’ and Macbook Pro are named specifically.
Ameranth, Inc. 
Facebook and Apple have been hit with another patent infringement lawsuit brought by small, relatively obscure research/technology companies. Yesterday,
Yesterday, the Regents of the University of California and Eolas Technologies, Inc. filed a lawsuit against Facebook in the U.S. District Court for the Eastern District of Texas. The suit alleges that Facebook has infringed on four different patents owned by the Regents and to which Eolas has an exclusive license.
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On August 31, View 360 Solutions LLC, a subsidiary of Acacia Research Corp.,
On August 29, Multimedia Patent Trust (“MPT”) filed a
Blue Spike, LLC filed a