U.S. Patent No. 5,540,279

2 opinions in this collection construe or address U.S. Patent No. 5,540,279. View the patent on Google Patents.

• August 5, 2011 E.D. Tex. Weatherford International, Inc. et al v. Halliburton Energy Services, Inc. et al, No. 2:09-cv-00261 (E.D. Tex. Aug. 5, 2011) Claims Construed
• August 5, 2011 E.D. Tex. Weatherford International, Inc. et al v. Halliburton Energy Services, Inc. et al, No. 2:09-cv-00261 (E.D. Tex. Aug. 5, 2011) Claims Construed