This is from 2014 and says they make about $2B per year. https://www.zdnet.com/article/310-microsoft-patents-used-in-android-licensing-agreements-revealed-by-c

This is from 2014 and says they make about $2B per year. https://www.zdnet.com/article/310-microsoft-patents-used-in-android-licensing-agreements-revealed-by-chinese-gov/ https://www.zdnet.com/article/310-microsoft-patents-used-in-... But later reports suggest they're making a lot less now.