Rambus Drops on Patent Ruling

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Rambus

(RMBS) - Get Report

was losing 5.8% to $9.50 in premarket Instinet trading on Tuesday after a patent infringement case with

Infineon Technologies

(IFX)

took another turn against the chip technology designer.

A Virginia court handed down an injunction to prevent Rambus from enforcingcertain patents against some Infineon products.

Rambus said the order was "largely as expected." The company plans to appeal the ruling.