Think about this, isnt it easy for google to steal or create patents with ideas that are not theirs ? Thanks to the number of people searching on their site. For example lets say if someone searched for how to get family members into a group chat online ... there you go , google hangout , what else .. how can i pay from my mobile using NFC , there you go google wallet. You really dont know what all kind of questions google get from users, most of which might be ideas to see how users want to see things. Its like reading millions of minds, so instead of asking everyone what they want, google is told by customers what they want, this is scary and can make google evil, though it has the face of "do no evil". Be careful dont search for anything you want to regret , goto specific patent database and search if you are looking for patents. There are individual sites which specialize on things, go there rather than the generic google search which is going to be subjected to great data analysis.