Polyzen sued Chicopee, Massachusetts company Dielectrics, Inc., alleging that various Dielectrics 2019 multi-layer film welded medical balloons infringe U.S. Patent No. 9,737,694. The patent, which issued just last month, claims methods of manufacturing medical balloons. The case is before Judge Mark Mastroianni in the Springfield division of the District of Massachusetts.
Judge Mastroianni, a Springfield native, received his commission as a judge in June, 2014. Of the five patent cases he has thus far presided over, this is the second involving Polyzen and Dielectrics. Polyzen previously sued Dielectrics on August 19, 2015, alleging infringement of U.S. Patent Nos. 7,976,497 and 8,740,845, which are also directed to medical balloons. The dispute centers around Polyzen 2019s distributor RadiaDyne, who has the exclusive right to use and sell covered medical balloons manufactured by Polyzen. According to the earlier complaint, RadiaDyne provided confidential and proprietary information of Polyzen to Dielectrics, who used the information to manufacture lower-cost (but infringing) balloons for RadiaDyne to sell. Polyzen sued both companies in North Carolina, but the suit against Dielectrics was dismissed for lack of personal jurisdiction, leading to the Massachusetts suit. This first case remains stayed pending the outcome of the North Carolina suit, which is currently under appeal.
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