July 27, 2009
Petron Industries Inc., a maker of computerized drilling rigs, has agreed to dismiss an antitrust claim accusing Key Energy Services Inc. of asserting fraudulent patents for collecting data and conducting repairs in oil wells.
February 20, 2009
Computerized drilling rig manufacturer Petron Industries Inc. has struck back at rival Key Energy Services Inc. in an infringement suit over patents for collecting data and conducting repairs in oil wells, accusing Key Energy of violating federal antitrust law and making fraudulent representations to the U.S. Patent and Trademark Office.
September 12, 2008
Rig-based well service company Key Energy Services Inc. has sued two rivals for allegedly infringing patents related to collecting data and conducting repairs in oil wells.