Digi-Block, Inc. (Cambridge, MA) has sued Programming Concepts Ltd. (San Antonio, TX) for infringement of Patent Nos. 5,794,734; 5,980,258; and 6,206,701 directed to mathematical teaching apparatuses. The accused product is the KP Manipulatives Kit, a product designed to assist in teaching the decimal system.
Digi-Block, Inc. v. Programming Concepts Ltd., 10-11161-MLW (D. Mass. July 12, 2010)
Comments