Lecat's Ventriloscope v. MT Tool & Mfg.

Chief Judge Rubén Castillo

Lecat's Ventriloscope ("Plaintiff") filed this suit against MT Tool and Manufacturing ("Defendant") for alleged infringement of U.S. Patent No. 7,645,141 ("the '141 Patent"). (R. 1, Compl.) Generally speaking, the invention disclosed and claimed in the '141 Patent is a device to help train physicians and other medical professionals in the use of "auscultation" devices (e.g. , stethoscopes) to evaluate and diagnose patients. The language of the claims defines the scope of a patent, and here, as happens in most patent infringement cases, the parties dispute the meaning…