Microsoft and Google have agreed to end a five-year battle over patents.
Eighteen lawsuits had been active between the companies, relating to uses of technologies in mobile phones, wifi and other areas.
Details of the deal were not shared, but in a joint statement the firms said they would "collaborate on certain patent matters".
It is the latest move by technology firms to keep patent rows out of the courts.
The battles, particularly over software, intensified in recent years as firms sought to capitalise on their patent portfolios.
But of late there has been a shift towards licensing rather than litigation.