Gronemeyer v. Hunter Manufacturing Corp.

Seitz, Chancellor:

This is an action to enjoin the defendant corporation from using certain drawings and patterns or copies thereof, and for an accounting of profits earned by defendant.

Plaintiff, George E. Gronemeyer, is a mechanical engineer who for some years has specialized in industrial installation. He devised *517a system of reflective metal sheets arranged in layers with air spacings between which he called “Mirror Insulation”. The basic idea was subsequently incorporated in a patent which was granted him.

The plaintiff by testing and experimentation came to develop a practical and…