MS may have to suspend sales of its software there or modify the software or pay royalties to the Korean professor who developed the technology and the Korean software firm to which he sold an interest.
MS claims it has found prior art that would invalidate the Korean patents. It also argues that the plaintiff still has to show that its patent was infringed and establish the value of the damage incurred.
Nationalist Korea has been fairly hostile to foreign companies in the past and this is not MS's first dispute there.
