DOW JONES NEWSWIRES
Rambus Inc. (RMBS) said the U.S. International Trade Comission rejected its patent-infringement claims against a slew of chip makers, dealing the technology licensor a new setback.
In his initial determination, ITC administrative law judge Theodore R. Essex said technology offered by LSI Corp. (LSI), MediaTek Inc. (2454.TW), STMicroelectronics NV (STM, STM.MI) and other semiconductor companies did not violate patents held by Rambus, potentially depriving the technology company of new revenue.
Rambus licenses patented technology that is used to accelerate the performance of memory chips. The company on Monday disclosed Chief Executive Harold Hughes's plans to retire, opening up a new search for his successor.
Rambus filed the patent complaints in 2010, accusing a series of chip makers of violating several patents that cover computer-port interfaces and controllers for memory chips.
The company said a previous decision by Essex found Nvidia Corp. (NVDA) infringed on three of its memory-controller patents, which led to a five-year licensing deal reached last month. Terms of that agreement were not disclosed.
Rambus on Friday said it has the right to ask for a review of the latest decision.
"We have yet to receive the decision, but are disappointed with the initial determination of no violation," Rambus general counsel Thomas Lavell said. "We believe in the strength of our portfolio and remain committed to protecting our patented inventions from unlicensed use."
Shares were recently off 1.8% at $6.69 after hours. The stock was off 67% over the past year through Friday's close.
-By Drew FitzGerald, Dow Jones Newswires; 212-416-2909; firstname.lastname@example.org
(END) Dow Jones Newswires
March 02, 2012 18:13 ET (23:13 GMT)
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