Patent Developers, Inc. v. Gear Grinding Mach. Co.

TUTTLE, District Judge.

This is a suit for infringement of letters patent Nos. 1,897,153, dated February 14, 1933, and 2,047,088, dated July 7, 1936, issued on applications filed by Ray Thornton. Claims 5, 8, 9, and 10 of the first patent, and claims 4—12, inclusive, of the second patent, are in suit. The plaintiffs are Patent Developers, Inc., owner of the legal title and to whom the patents issued, and Thornton Tandem Company,' exclusive licensee; the defendants are the Gear Grinding Machine Company and Noble C. Banks. The plaintiffs as well as the corporate defendant are corporations…