Tag Archives | lost profits

Patent Damages: Lost Profits

A patent infringer is liable to a patent owner for damages adequate to compensate the patent owner for infringement, but no less than a reasonable royalty for the use made of the invention by the infringer. 35 USC 284.

Traditionally, there are three ways of measuring compensatory damages for patent infringement: (1) lost profits, (2) established royalty, or (3) a reasonable royalty. Today I’m going to discuss lost profit damages.

Lost Profits

In order to recover lost profits, the patent owner must “show ‘causation in fact,’ establishing that ‘but for’ the infringement, he would have made additional profits.” Wechsler v. Macke Int’l Trade, Inc., 486 F.3d 1286, 1293 (Fed. Cir. 2007). The “but for” causation asks, if the infringement had not occurred, would the patent owner made the alleged …

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