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Momenta Pharmaceuticals, Inc. (MNTA) Sues Amphastar Pharmaceuticals, Inc. for Patent Infringement  
9/22/2011 6:49:16 AM

CAMBRIDGE, Mass., Sept. 21, 2011 (GLOBE NEWSWIRE) -- Momenta Pharmaceuticals, Inc. (Nasdaq:MNTA - News), a biotechnology company specializing in the characterization and engineering of complex drugs, today announced that it has sued Amphastar Pharmaceuticals, Inc., Watson Pharmaceuticals, Inc. and International Medical Systems, Ltd. in the United States District Court for the District of Massachusetts for infringement of two Momenta patents. The patents cover the company's innovative methods of producing enoxaparin sodium, which assure that the commercial product meets standards for identity and quality. One patent, U.S. Patent No. 7,790,466, is related to methods of processing enoxaparin to determine the presence of certain tetrasaccharide structures. The second patent, U.S. Patent No. 7,575,886, is related to methods of analyzing enoxaparin for the presence of a certain structural signature.

"Momenta has made a substantial investment in the development of novel methods that make it possible to assure the quality of complex products such as enoxaparin sodium," stated Craig Wheeler, President and Chief Executive Officer of Momenta. "This is the second lawsuit we have filed with the intent to vigorously enforce these patent rights and protect our investment in innovative science."

About Momenta

Momenta Pharmaceuticals is a biotechnology company specializing in the detailed structural analysis of complex mixture drugs. Momenta is applying its technology to the development of generic versions of complex drug products, as well as to the discovery and development of novel drugs. Momenta was founded in 2001 based on technology initially developed at Massachusetts Institute of Technology and is headquartered in Cambridge, MA.

To receive additional information about Momenta, please visit the website at www.momentapharma.com, which does not form a part of this press release. Our logo, trademarks, and service marks are the property of Momenta Pharmaceuticals, Inc. All other trade names, trademarks, or service marks are property of their respective owners.

Contact:

Beverly HolleyDirector, Investor Relationsbholley@momentapharma.com617-395-5189


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