3M Sues Andover Healthcare Inc.

3M MMM and 3M Innovative Properties Co. filed a lawsuit in the U.S. District Court for the District of Minnesota today against Andover Healthcare Inc. seeking a preliminary injunction as well as a permanent injunction and damages regarding Andover's two layer compression bandage systems. The suit alleges that Andover's two layer compression bandage systems, including the CoFlex TLC Two Layer Compression System and the CoFlex TLC Lite Two Layer Compression System, infringe a 3M patent (U.S. Patent No. 7,854,716) covering its innovative 3M™ Coban™ 2 Layer Compression System and 3M™ Coban™ 2 Layer Lite Compression System. The U.S. Patent Office issued the 3M patent today.