Not patented - it only means that the inventor won't get royalties if the technology is used. And it will be used.
First, it will be with all the good intentions you can imagine. To keep tabs on a terrorist, or a violent criminal, or a released pedophile.
Then to protect people who could be at risk for kidnapping.
Then to new-born, until they are 18.
And one day, we will be all traceable.
Trying to be nice