Pulse Eng?g. Inc. v. Mascon, Inc., 2009 WL 3234177 (S.D. Cal. Oct. 2, 2009)

Key Insight: Court denied motion to compel production of redacted portions of emails where the emails were prepared in anticipation of litigation and where dissemination to third party with common legal interest did not constitute waiver pursuant to the Common Interest Doctrine (commonality of interested existed where third party was responsible for manufacturing and supplying the allegedly infringing filter)

Nature of Case: Patent infringement

Electronic Data Involved: Portions of privileged emails