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The software maker files patent infringement actions after it says that Taiwan's Primax Electronics refused to license its technology.
Mouse maker Primax is entering a nonexclusive licensing agreement to use Microsoft technologies after settling a patent infringement suit with the software company.
Microsoft behaves very differently when it feels its patents are threatened. It acts like an adult.
Different component suppliers mean differing quality for individual iPhone units
Although Microsoft has been on the receiving end of plenty of patent complaints, this is only the third major case the company itself has filed.