. Although it has been suggested that the Pennypack factors embody the harmlessness standard set forth in Rule 37(c), see, e.g., UCB, Inc. v. KV Pharm. Co., 692 F.Supp.2d 419, 421 (D. Del. 2010), Pennypack has not typically been regarded as a harmless error rule. Moreover, the distinction is not just semantic.
Excluding Rymed's defense would be an inappropriately extreme remedy. See UCB, Inc. v. KV Pharmaceutical Co., 692 F.Supp. 2d 419, 422 (D. Del. 2010). The issue of prosecution history estoppel presents a question of law for the Court to address at a bench trial now scheduled for January 2011.