Halliburton Energy Servs., Inc. v. M-I LLC
January 28, 2008
Halliburton Energy Services, Inc. (“Halliburton”) appeals from a final judgment of the United States District Court for the Eastern District of Texas. Halliburton Energy Services, Inc. v. M-I LLC, No. 6:05-CV-155 (E.D. Tex. Nov. 20, 2006) (“Judgment Order”). The district court granted summary judgment in favor of M-I LLC (“M-I”), holding that independent claims 1-3 and 5 and their asserted dependent claims of U.S. Patent No. 6,887,832 B2 (“the ’832 patent”) were invalid as indefinite under 35 U.S.C. § 112, ¶ 2. We heard oral argument on November 7, 2007. Because a claim term in each asserted claim lacked clear meaning to the ordinary artisan, we affirm.
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