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U.S. EX REL. GRYNBERG v. PRAXAIR, INC.

Nos. 01-1214, 01-1242.

389 F.3d 1038 (2004)

UNITED STATES of America ex rel. Jack J. GRYNBERG, Plaintiff-Appellant and Cross-Appellee, v. PRAXAIR, INC., Defendant-Appellee and Cross-Appellant, and Nielson & Associates, Inc., Defendant-Appellee. United States of America, Intervenor.

United States Court of Appeals, Tenth Circuit.

November 15, 2004.

Attorney(s) appearing for the Case

Edward A. Dauer (Michael S. Porter with him on the briefs), Denver, CO, for Plaintiff-Appellant and Cross-Appellee Jack J. Grynberg.

Mark D. Colley (Craig A. Holman with him on the briefs), of Holland & Knight LLP, Washington, DC, for Defendant-Appellee and Cross-Appellant Praxair, Inc.

Chris Edwards of Simpson, Keeler & Edwards, LLC, Cody, WY, for Defendant-Appellee Nielson & Associates, Inc.

Robert D. McCallum, Jr., Assistant Attorney General, John W. Suthers, United States Attorney, Douglas Letter, Appellate Litigation Counsel, and Peter R. Maier, Attorney, United States Department of Justice, Washington, DC, filed a brief on behalf of Intervenor United States.

Before BRISCOE, ANDERSON and O'BRIEN, Circuit Judges.

O'BRIEN, Circuit Judge.

Relator Jack J. Grynberg filed a qui tam action1 under the False Claims Act (FCA), 31 U.S.C. § 3729 et seq., against Defendants Nielson & Associates, Inc. (Nielson) and Praxair, Inc. (Praxair). See United States ex rel. Grynberg v. Praxair, Inc., 207 F.Supp.2d 1163 (D.Colo.2001). He claimed Defendants knowingly presented or caused to be presented...

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