Microsoft is returning to court over another patent infringement case, this time concerning Primax Electronics.
The Taiwanese vendor specialises in peripherals and imaging products.
The suit centres around the alleged use of three Microsoft patents on mouse features. The company claims that Primax is using its U2 connection interface, Tiltwheel and Magnifier features.
Microsoft said that it licenses the patents to more than 20 other hardware vendors, but that Primax continues to use the features without having a deal in place.
The company has filed an infringement complaint with the International Trade Commission in the hope of forcing Primax to take up a licensing agreement.
"Microsoft has an open intellectual property licensing policy," said Horacio Guitierrez, Microsoft's vice president and deputy general counsel for intellectual property and licensing.
"But in situations such as this, in which a reasonable licensing agreement cannot be reached despite our best efforts, we have no choice but to pursue legal action to protect our innovations.
"Primax's practice of using our innovations without taking a patent licence is unfair to the many companies that have already licensed our technology, so we are taking action to protect our partners and our innovations."
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