1. Home
  2. |Insights
  3. |Applicability of Privilege to Internal Investigations Upheld, Again

Applicability of Privilege to Internal Investigations Upheld, Again

Client Alert | less than 1 min read | 08.12.15

In a decision preserving the strength of the attorney-client privilege, the D.C. Circuit in U.S. ex rel. Barko v. Halliburton once again vacated an order from the district court requiring KBR to produce attorney-client privileged documents created during an internal investigation. Specifically,  the D.C. Circuit granted mandamus based on the "clear and indisputable error" in the findings that (1) KBR had waived  the privilege under Rule 612 by allowing a non-lawyer, Rule 30(b)(6) witness to review the investigation  report during deposition preparation; and (2) KBR had put the investigation report into issue by mentioning the company's "investigative mechanism" in a motion for summary judgment.


Insights

Client Alert | 3 min read | 05.26.26

pH, Prosecution History Estoppel, and Patent Scope: Three Lessons from the Federal Circuit's Latest Hatch-Waxman Ruling

On May 13, 2026, the U.S. Court of Appeals for the Federal Circuit affirmed a district court judgment of no infringement in Actelion Pharmaceuticals Ltd. v. Mylan Pharmaceuticals Inc., No. 24-1641. The decision offers important guidance for patent holders and generic manufacturers on the role of industry standards in interpreting scientific terminology during claim construction, prosecution history estoppel, and the disclosure-dedication rule....