Patent Damages
15Aug/16Off

NDCA excludes expert testimony for failure to apportion (including addressing claim scope argument)

Posted by Chris Marchese

The Northern District of California, in Nortek Air Solutions, LLC v. Energy Lab Corp., No. 14-cv-02919-BLE (July 15, 2016) (Judge Beth Labson Freeman), granted Energy Labs’ Daubert motion to exclude testimony of Nortek’s damages expert, Dr. Stephen Prowse, regarding reasonable royalty damages.  The motion included three reasons; we address the first one here:  “Dr. Prowse’s royalty analysis fails to apportion the value of the allegedly patented features from the unpatented features in the accused products ….”  Slip op. at 8.  The accused products were air handling systems.

In response to the motion, Nortek argued that Dr. Prowse had properly relied on the value of the accused air handling system as a whole rather than a smaller component for several reasons:  (1) “because the asserted claims are directed to the entire air handling unit rather than any individual features,” and (2) because “the air handling unit is the smallest saleable unit and thus an appropriate royalty base.”  Id.