'A Rational System of Design Patent Remedies' (Stanford Public Law Working Paper No. 2226508) by Mark A. Lemley
comments that
A [US] design patent owner who wins her suit is entitled to the defendant's entire profit from the sale of the product, whether or not the design was the basis for buying the product. No other IP regime has this rule, and it makes no sense in the modern world, where a design may cover only a small component of a valuable product. The culprit is section 289 of the Patent Act, a provision added in the nineteenth century, when design patents were very different than they are today. We should abolish section 289 and bring rationality to design patent remedies.