Posts Tagged: "western district of north carolina"

Inadequate Investigation Prior to Patent Infringement Lawsuit Merits Attorneys’ Fees and Costs

Prior to filing the lawsuit the Plaintiff sought the opinion of patent counsel to evaluate the prospect of a patent infringement suit against the Defendants, and received such an opinion in the form of a letter from opinion counsel. A claims chart was attached to the opinion letter, which identified the limitations of the claims, the opinion counsel’s interpretation of each of the limitations, and an opinion as to whether each limitation is present in the accused product. Neither the letter nor the chart contained explanation of counsel’s claim construction and his application of the claim limitations to the accused product. There were no citations to the specification or prosecution history, and no analysis provided to explain why counsel construed the patent terms the way in which he did.