AMD has asked a US court to compel Intel to disclose documents relating to its activities outside the US, as part of an ongoing anti-trust lawsuit.

The case revolves around AMD's allegations that Intel used offers of exclusive deals and threats of price increases to maintain a monopoly in the worldwide market for x86 microprocessors in the four years to June 2005, when AMD filed its complaint.

AMD wants Intel to produce documents that, AMD says, will show evidence of coercion and other misconduct directed at microprocessor customers outside the U.S.

The company suffered a setback in its case on 26 September, when Judge Joseph Farnan ruled that the US District Court for the District of Delaware did not have jurisdiction over claims arising from sales to customers outside the US of microprocessors made at AMD's plant in Germany.

However, Intel is using that ruling to justify withholding documents relating to sales to US customers of chips made at the German plant, and of chips made in the US sold to customers elsewhere, said AMD spokesman Michael Silverman. The 26 September ruling should only apply to the damages that AMD can seek, and not to the scope of the discovery process, he said.

AMD's motion, concludes: "Evidence of Intel's foreign exclusionary conduct is directly relevant to proof of AMD's claims for damages based on lost sales to U.S. customers and in the export trade. AMD's motion to compel Intel to produce foreign conduct documents ... should accordingly be granted."

Silverman expects a final decision on the motion to compel in early December, with the trial beginning in April 2009.

Intel staff in Europe could not immediately be reached for comment. AMD staff referred questions to the company's lawyers in the US.