MYK Mykrolis Corp

Mykrolis Requests Court to Hold Pall Corporation in Contempt BILLERICA, Mass., June 21 /PRNewswire-FirstCall/ -- Mykrolis (NYSE:MYK) announced today that it filed a request with the United States District Court in Boston that Pall Corporation (NYSE:PLL) be held in contempt of court. Mykrolis believes that Pall has defied the Court's preliminary injunction order issued on April 30, 2004 that prohibits Pall from importing and selling certain of Pall's photoresist filtering products or colorable imitations thereof. Pall is continuing to sell its EZD-3 products, which are renamed versions of its EZD-2 products, both of which Mykrolis contends are subject to the preliminary injunction order. The Court's April 30, 2004 preliminary injunction order enjoined Pall and its affiliates from further infringement of Mykrolis's U.S. patents at issue in the litigation, as well as from "making, using, selling, or offering to sell within the United States, or from importing into the United States, the product now being sold under the name PhotoKleen(TM) EZD-2 Filter Assembly, or any colorable imitation thereof, until further order of this Court." Pall is appealing this order from the Court. Peter W. Walcott, Vice President and General Counsel, commented: "We believe the actions by Pall that prompted our legal actions are very serious. We intend to continue to actively and aggressively pursue this litigation and to protect our intellectual property rights. As part of these efforts we are requesting that the Court hold Pall in contempt for not acting in conformity with the preliminary injunction order." About Mykrolis Mykrolis Corporation, which reported sales of $186 million in fiscal 2003, is a worldwide developer, manufacturer and supplier of liquid and gas delivery systems, components and consumables used to precisely measure, deliver, control and purify the process liquids, gases and chemicals in the semiconductor manufacturing process. In addition, the Company's products are used to manufacture a range of other products, such as flat panel displays, high purity chemicals, photoresists, solar cells, gas lasers, optical disks and fiber optic cables. Based in Billerica, Massachusetts, Mykrolis is formerly Millipore Microelectronics, Inc. For more information, visit http://www.mykrolis.com/. Contact: Steve Cantor, Director of Investor Relations and Corporate Communications 978-436-6500, DATASOURCE: Mykrolis Corporation CONTACT: Steve Cantor, Director of Investor Relations and Corporate Communications, +1-978-436-6500, Web site: http://www.mykrolis.com/

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