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U.S. top court tightens patent suit rules in blow to 'patent trolls'

The U.S. Supreme Court on Monday tightened rules for where patent lawsuits can be filed in a decision that may make it harder for so-called patent "trolls" to launch sometimes dodgy patent cases in friendly courts, a major irritant for high-tech giants like Apple and Alphabet Inc's Google.

Pound sags vs yen after Manchester blast, euro at six-month highs

The pound slipped against the yen after a suspected terrorist attack at a concert in Britain's city of Manchester, while the euro hovered near a six-month high against the dollar on Tuesday after German Chancellor Angela Merkel said the currency was "too weak."

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