Supreme court signals change in U.S. patent protection rules
The U.S. Supreme Court signaled it may make it easier to challenge patents granted to some inventions as the justices criticized a lower court test used for more than two decades.
The court heard arguments today in a bid by KSR International Co. to stop a lawsuit that accuses it of using Teleflex Inc.'s patented invention for adjustable gas pedals. KSR is asking the court to rule that innovations that merely combine existing products often don't qualify for a patent.
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