In a US case in which BT is claiming patent rights over hyperlinks, the company yesterday suffered an early blow. District Judge Colleen McMahon appears to disagree with the company’s assertion that its patent covers links on the internet, according to legal journal The Recorder.

In a New York district court, BT sued Prodigy, the first commercial ISP in the US. It alleges that Prodigy is infringing its controversial patent. The patent was filed in the 1970s, long before the World Wide Web existed. It is known as the “Hidden Page” patent and is only valid in the US. It expires in October 2006.

However, if successful, BT could, in theory, demand licence fees from almost every business in the US. Unsurprisingly, Prodigy argues that BT’s patent should be declared invalid.

Judge McMahon yesterday gave a ruling, although it does not address the validity or otherwise of the patent. However, The Recorder observes that it may serve as the basis for Prodigy to have BT’s lawsuit thrown out before going to a jury trial. The ruling has yet to be released publicly.

A lawyer for Prodigy is quoted by The Recorder as saying that the order gives a number of reasons as to why there should be no infringement. Specifically, the patent refers to a "central" computer connected to "remote terminals". The ruling of McMahon, according to Prodigy’s lawyer, indicates that this possibly does not cover the internet, because the internet has no single central computer controlling hyperlinks.

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