The U.S. Supreme Court on Monday tightened rules on where injury lawsuits may be filed, handing a victory to corporations by undercutting the ability of plaintiffs to bring claims in friendly courts in a case involving litigation over the Bristol-Myers Squibb Co. blood-thinning medication Plavix.

The justices, in an 8-1 ruling, threw out a lower court decision allowing hundreds of out-of-state patients who took Plavix to sue the company in California. State courts cannot hear claims against companies that are not based in the state when the alleged injuries did not occur there, the justices ruled.

The court last month reached a similar conclusion in a separate case involving out-of-state injury claims against Texas-based BNSF Railway Co.
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