Diamond Services Management Company LLC v. C&C Jewelry Manufacturing, Inc.

IN THE UNITED STATES DISTRICT COURT FOR THE NORTHERN DISTRICT OF ILLINOIS EASTERN DIVISION DIAMOND SERVICES MANAGEMENT COMPANY LLC and FREDERICK GOLDMAN, INC., No. 19-cv-07675 Plaintiffs/Counter-Defendants, Judge John F. Kness v. C&C JEWELRY MANUFACTURING, INC. and ROBERT G. CONNOLLY, Defendants/Counter-Plaintiffs. MEMORANDUM OPINION AND ORDER This case involves a familiar refrain in disputes over patent license agreements: Plaintiffs allege breach of contract, and Defendants shoot back that the underlying patent is invalid. In 2011, Plaintiffs, the exclusive licensors of certain patents…