The Federal Circuit handed down a 3-0 decision on Jan. 8, 2014, in Pacific Coast Marine Windshields Limited v. Malibu Boats, LLC et al., recognizing that the concept of prosecution history estoppel applies to design patents. The decision was authored by Judge Dyk, who was joined by Judges Mayer and Chen.
The Federal Circuit overturned a Middle District of Florida's grant of Malibu Boats' motion for summary judgment of non-infringement, finding that prosecution history estoppel barred the infringement claim. The Federal Circuit held that the principles of prosecution history estoppel apply to design patents, but reversed the district court's summary judgment of non-infringement because the accused infringing design was not within the scope of the subject matter surrendered during prosecution.
In April 2006, the owner and CEO of Pacific Coast filed a design patent application claiming "an ornamental design of a marine windshield with a frame, a tapered corner post with vent holes and without vent holes, and with a hatch and without said hatch." The originally filed figures included multiple embodiments with variations of including or not including a front hatch and including or not including various numbers and shapes of vent holes, as shown below.
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