Research In Motion has won a delay in a patent-infringement case filed by Visto regarding wireless email technology.

The trial was scheduled to begin next Monday in Marshall, Texas, but the judge said a postponement is warranted while the US Patent and Trademark Office re-examines the four disputed patents.

RIM had filed for the stay in April, and it has agreed not to use the information in the review when the trial is held. It has also agreed not to file other requests with the Patent Office for new reviews.

Visto produces software for companies including Vodafone, T-Mobile, and Sprint Nextel that competes with RIM's BlackBerry products.

In 2006, Visto filed a suit claiming that RIM was using its wireless email technology without a license. It asked for unspecified damages and for RIM's network to be shut down.

RIM denies it has infringed Visto's patents, and it countersued to try to invalidate three of Visto's patents, which it said should not have been granted because they didn't contain new inventions.