The United States Court of Appeals for the Federal Circuit (CAFC) has become enamored with the power of the writ of mandamus to correct what they do not like, and they do not like patent owners filing patent infringement actions in Texas. Or, perhaps it is more accurate to say that while they might not mind patent owners filing patent infringement actions in Texas, they expect federal district court judges in Texas to order those patent owners off to other courthouses outside of Texas upon the request of defendants.

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