King Pharm. Inc. v. Purdue Pharma L.P., 2010 WL 2243872 (W.D. Va. June 2, 2010)

Key Insight: Where defendant produced a partially redacted document containing four inadvertently unredacted pages, court found that the disclosure met the test of 502(b) and that privilege was not waived ?in light of the low volume of production? and defendant?s prompt action to ?rectify the error? upon learning of the disclosure; court also stated that ?the fact that the document had been reviewed and partially redacted does not by itself prevent the disclosure from being inadvertent? and that ?[t]he nature of the mistake in disclosing a document is not limited by the rules, and logically ought to include mistaken redaction, as well as other types of mistakes that result in disclosure.?

Nature of Case: Patent litigation

Electronic Data Involved: Four unredacted privileged pages of printed presentation