Court Opinion

ID: 9308146
Source: CourtListenerOpinion
Date Created: 2022-12-02 17:18:50.134761+00
Date Added: 2024-06-11T17:14:00.716214
License: Public Domain

RICKS, District Judge.
Counsel for the defendants very properly quote from Robinson (Pat. § 1173) the three things essential to maintaining a preliminary injunction in a patent case: (1) that the patent is valid; (2) that plaintiff is the owner of a legal or equitable interest therein; and (3) that the defendant is about to commit an act of infringement. The complainants sue upon three patents, neither one of which has ever been adjudicated. In order to entitle them to an injunction, they must therefore show that the public has long used said patents, and has acquiesced in the validity thereof, and has never undertaken by litigation to question the patentee’s exclusive rights thereto, or the validity of said patents. They allege certain acts of the defendants, which, in a proper case, might be held to be contributory infringement, but which are not shown to be such by the facts in this case. The case, as made out and submitted, is deficient, and fails to establish any one of the grounds named which would entitle the complainants to a preliminary injunction. Such an injunction is not issued, unless the rights of the complainant thereto are clearly established. They are certainly not so established in this case. The motion for preliminary injunction is therefore disallowed.