Minneapolis-Moline Co. v. Massey-Harris Co.

JOYCE, District Judge.

This is an action for infringement of Ronning et al. Patent No. 2,455,905, issued December 7, 1948 to • Minneapolis-Moline Power Implement Company upon an application filed by Martin Ronning and Kenneth M. Keith. Plaintiff is the owner of said patent by virtue of assignment from Ronning and Keith and a subsequent assignment and merger in which it was the surviving corporation. The defenses asserted are noninfringement, anticipation, lack of invention, and that the alleged invention was not in fact a joint invention.

The patent in suit is embodied in a grain combine of the…