A US court last week denied a motion filed by chip maker AMD in which the firm sought to make sealed documents from a 1997 lawsuit against rival Intel available for an EC inquiry into alleged anticompetitive behavior by the company.
AMD believes there is expert testimony from the suit, filed by Intergraph, that relates to allegations of anticompetitive practices by Intel.
Intel's fiercest rival was not seeking to have the sealed testimony released to the public, only that it be released to the EC, said the firm.
The complaint was filed with the EC in October 2000. In it AMD accuses Intel of anticompetitive behavior, including offering illegal rebates as a way of excluding competition and threatening motherboard manufacturers who showed support for AMD's Athlon chip when it was launched by AMD in 1999.
AMD then filed the motion seeking the documents with the US District Court in San Jose, California, in October.
"This is a disappointment, but not a setback," said AMD spokesman John Greenagel.
The company has not decided whether it will appeal, as the San Jose court's memorandum explaining the ruling has not been issued yet, Greenagel said.
At the time of writing, IDG's news service could not gain comment from Intel.