Phillips Petroleum Co. v. Esso Standard Oil Co.

This is an appeal in a patent infringement suit involving Frey Patent No. 2,002,-394, which relates to a process for converting gaseous into liquid hydrocarbons by using heat and pressure to cause a reaction in which paraffins combine with olefins. The defendant uses a process which brings about the paraffin-olefin juncture but accomplishes this result, not by the use of heat and pressure as called for by the process of the patent, but by the use of sulphuric acid as a catalyst. The plaintiff contends that this catalyst was a known equivalent for the use of heat and pressure in such a…