Mercoid Corp. v. Minneapolis-Honeywell Regulator Co.

These are companion cases to Mercoid Corp. v. Mid-Continent Investment Co., ante, p. 661. One suit was instituted by petitioner, the other by respondent. Petitioner sought a declaratory judgment to the effect that the Freeman patent No. 1,813,732 was invalid and that petitioner did not infringe it, that respondent had used the Freeman patent in violation of the anti-trust laws, that respondent be restrained from threatening petitioner and its customers with infringement suits, that an accounting be had and treble damages awarded. Respondent in its bill sought a decree sustaining the validity…