To: Bilow who wrote (67791 ) 3/15/2001 3:48:39 PM From: Don Green Respond to of 93625 Rambus Shares Tumble on Reports of Negative Patent Ruling Story Filed: Thursday, March 15, 2001 3:25 PM EST LOS ANGELES (Reuters) - Shares of computer chip maker Rambus Inc. (RMBS.O) were down 30 percent on Thursday amid reports of a negative court ruling on its patents that could cut into the royalties it collects, a significant portion of its revenue. Shares of Rambus, which has developed technology to speed the performance of memory chips, fell $10.35 to $25 on the Nasdaq, where it was the third biggest loser in percentage terms. The stock was at its lowest level since February 2000, down from a high of $127 hit in June. Brokerage SG Cowen reported that U.S. District Court Judge Robert Payne made a pre-trial ruling in its court case with Infineon (IFX.N) (IFKGn.DE) siding with Infineon regarding the scope of Rambus' patents. An article posted on Wednesday on Cahners' Electronic News, an online electronic industry news site, also referred to the ruling and said it would limit the scope of Rambus' patents. It said the ruling could reject Rambus' royalty claims on synchronous dynamic random access memory (SDRAM) and double-date rate (DDR) memory. The article cited sources close to the case. A Richmond, Va., attorney representing Rambus referred calls to the company. Rambus did not return phone calls seeking comment. An Infineon spokeswoman declined to comment. ``It looks like it's down on an apparent negative ruling in the patent lawsuit with Infineon, although there is no definitive news from the court,'' said Tim Ghriskey, portfolio manager of the $4 billion Dreyfus Fund, which does not own the stock. Rambus collects royalties from Samsung (05930.KS), Mitsubishi Electric Corp. (6503.T), NEC Corp. (6701.T), Toshiba Corp. (6502.T) and Hitachi Ltd. (6501.T), and has pending lawsuits to collect royalties from Hyundai Electronics (00660.KS), Micron Technology Inc. (MU.N) and Infineon. Copyright © 2001 Reuters Limited