Houston Engineers, Inc. v. Bowen-Itco, Inc. And Lynn W. Storm

RIVES, Circuit Judge.

This appeal is from a judgment holding Claim 6 of United States Letters Patent Reissue No. 23,354, reissued April 10, 1951, to be valid and infringed. The judgment ordered an accounting to determine damages, and enjoined the defendant from further infringement. The opinion, findings of fact, and conclusions of law of the district court are reported at 192 F.Supp. 223.

The subject matter of the patent is a “jar” or tool for jarring stuck objects loose from well bores. When an object stuck in the bore of an oil well cannot be loosened and pulled out by a steady pull, it has…