State officials and environmentalists said the ruling would help New York meet smog standards.
The ruling helped tobacco stocks, since it removed the threat of many costly legal actions.
"I am very gratified because this ruling will help so many people."
The ruling could help tobacco companies avoid billions of dollars in damages.
The ruling could help shareholders by forcing companies to sell to the highest bidder.
A final ruling will help define how companies in the red-hot Internet search business make their money.
The ruling helps clear the way for a cheaper generic version and could lead to more lawsuits.
But a surprising ruling last week by five appeals judges may help change that view.
This ruling will help keep the playing field level and boost American jobs.
The ruling applies to two men, but could help many more if the case is certified as a class action.