Bioverativ Inc., et al. v. CSL Behring LLC, et al. (Opinion, March 4, 2020)

This opinion by Judge Andrews in Delaware provides insight into the court’s thinking with respect to convoyed sales. Ultimately, the court excluded certain opinions of Dr. Matthew Lynde, plaintiffs’ damages expert, based upon his opinion that non-infringing uses of the drug at issue constituted convoyed sales and, therefore, were subject to damages.

This case involved not a patented drug itself, but rather “infringing prophylaxis uses and non-infringing prophylaxis and on-demand uses.” Judge Andrews agreed with defendants that those sales to patients prescribed a non-infringing dosing regimen should not be subject to damages. Citing American Seating and Juicy Whip v. Orange Bang, the court explained that such non-infringing sales – generally subject to separate prescription – were not available for damages because they did not pass the functional unit test.

Plaintiffs’ damages here appear a simple case of over-reach.