Both Cleartracks and Inprivate are about clearing the history. Inprivate will also clear the cache and suggest ways to get around certain Parental Controls, or something to that effect.
My goodness, what if someone has already developed these and are actively using them in existing browsers, like Firefox, Opera, Flock or Safari?
These definitely require patent protection. It must be fun to have first worked to integrate Parental Controls with the OS, and now have to develop a way around them ...
"computer programs for accessing and using the Internet and the world wide web; and computer programs for deleting search history after accessing websites"
"computer programs for accessing and using the Internet and the world wide web; computer programs for disabling the history and file caching features of a web browser; and computer software for notifying a user of a web browser when others are tracking web use and for controlling the information others can access about such use"