August 16, 2010 / 9:51 PM / 8 years ago

UPDATE 1-Cisco files against Canadian patent firm Mosaid

TORONTO, Aug 16 (Reuters) - Cisco Systems (CSCO.O) has filed a patent complaint in a U.S. court against Mosaid Technologies MSD.TO in a dispute over royalties, the Canadian patent licensing firm said on Monday.

The U.S. communications networks giant is seeking declarations of non-infringement and invalidity on nine U.S. patents and one patent application owned by Kanata, Ontario-based Mosaid.

The patents relate to Power over Ethernet (PoE) technologies, which allow electrical current to be passed along the same cable as data, Mosaid said.

“Mosaid believes Cisco requires a license to our portfolio of Power over Ethernet patents,” spokesman Michael Salter said.

Salter said Mosaid owns around 300 patents related to PoE technology, from a total of 2,000 patents and patent applications, mostly related to semiconductor and memory technology.

The firm said it does receive revenue from PoE products already in the market, but did not provide a value or details.

Cisco said in its filing in U.S. District Court in Delaware that it does not infringe the patents in question and Mosaid is not entitled to any royalties.

Mosaid shares closed 1.5 percent lower at C$21.28 on the Toronto Stock Exchange, valuing the firm at C$250 million ($240 million). Cisco is valued at $122 billion. Its shares closed 2.6 percent higher at $21.91 on Nasdaq.

The complaint was filed under seal on Aug. 13, and a public version was filed on Aug. 16. Mosaid, which said it has not been formally served with the complaint, is considering its response.

$1=$1.04 Canadian Reporting by Alastair Sharp; editing by Rob Wilson

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