A visitor passes the Google logo at the official opening...

A visitor passes the Google logo at the official opening party of the Google offices in Berlin, Germany. (Sept. 26, 2012) Credit: Getty Images

BT Group Plc's U.S. unit was sued by Google Inc. over claims it infringed four patents related to network communications including through voice-over-Internet services that BT Americas provides.

Google, owner of the world's most popular Internet search engine, filed a complaint Wednesday in federal court in Los Angeles. The Mountain View, California-based company seeks a court order preventing BT Americas from continuing its alleged infringements of the patents as well as unspecified damages.

BT, based in London, accused Google in a 2011 lawsuit of infringing six of its U.S. patents for mobile-device technology.

"BT has brought several meritless patent claims against Google and our customers -- and they've also been arming patent trolls," Niki Fenwick, a Google spokeswoman, said in an emailed statement Wednesday. "When faced with these kind of actions, we will defend ourselves." Kris Kozamchak, a BT spokeswoman, said Wednesday in an email that the company doesn't comment on pending litigation.

The case is Google v. BT Americas, 13-00254, U.S. District Court, Central District of California (Los Angeles).

NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore. Credit: Randee Daddona, Michael Rupolo

Out East Show: Visit The Shamrock evergreen maze, Sannino Vineyard, Seven Ponds Orchard and the Warrior Ranch Foundation NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore.

NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore. Credit: Randee Daddona, Michael Rupolo

Out East Show: Visit The Shamrock evergreen maze, Sannino Vineyard, Seven Ponds Orchard and the Warrior Ranch Foundation NewsdayTV's Doug Geed is heading 'Out East' to showcase the ultimate local spots you need to explore.

Subscribe

Unlimited Digital AccessOnly 25¢for 6 months

SUBSCRIBESALE ENDS SOON | CANCEL ANYTIME