Weatherford International, Inc. et al v. Halliburton Energy Services, Inc. et al, No. 2:09-cv-00261 (E.D. Tex. Mar. 14, 2011)

From the Opinion

The passage below is extracted verbatim from the opening of the document. It has not been editorially summarized — consult the full opinion for the court's complete reasoning.

Pending before the court are defendant Halliburton Energy Services, Inc.’s (“Halliburton”) motion for partial summary judg ment (Dkt. No. 69) and motion for expedited consideration thereof (Dkt. No. 70). Hallibur ton argues that the July 21, 2009 Certificate of Correction issued by the PTO, which corrects purpor ted typographical errors in U.S. Patent No. 7,124,831, is invalid as a matter of law.