M & I Heat Transfer Products, Ltd. v. Gorchev

BOUDIN, Circuit Judge.

M & I Heat Transfer Products, Ltd. (“M & I”), a Canadian corporation, and Miteo Space-Gain, Inc. (“Miteo”), a Massachusetts corporation, compete in the design and sale of air-handling unit systems, which move air for purposes of heating and cooling buildings. Dimiter Gorchev, a citizen of Massachusetts, is the sole stockholder, director, and president of Miteo. This appeal arises out of a diversity action brought by M & I against Miteo and Gorchev. The pertinent events are as follows.

In 1993, Vanderbilt University in Nashville, Tennessee, purchased an air-handling system…