The Historical Roots of Patent Injunctions: Revisiting Horton v. Maltby (1783)
Briefly

The case of Horton v. Maltby illuminates the essential principles of equity in patent law, emphasizing that the mere existence of ongoing infringement during litigation can suffice to support claims of irreparable harm.
Lord Ashurst's reasoning inspired a shift in understanding equity cases by concluding that patent holders should not have to establish their rights at law before seeking injunctive relief, thereby acknowledging the unique nature of patent rights.
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