According to FOSS Patents the patents relate to phone number tapping, unified search, data synchronization, slide to unlock, and autocomplete. It’s worth noting that these patents don’t cover everything regarding the five features, though they cover enough to justify the lawsuit in Apple’s eye, and the court agreed to hear arguments regarding them.
If Apple gets the royalty rates it’s asking for, it may well be the largest royalty rate any manufacturer has to pay for any device.
Microsoft gets money from many Android phone manufacturers for every phone sold through patent licensing deals. But analysts estimate those only amount to between $10 and $20 per device.
The case is scheduled to go in front of Judge Lucy Koh on March 31.