Patented in the
USA on
September 5, 1996. Yep. That's right. Supposedly someone
owns the
process of putting
tattoos on people to
identify them.
Probably something that will never happen due to some peoples' religious objections, and due to other peoples' privacy objections. And it's just a bad idea. Besides, retina scanners and fingerprint scanners work just as well and are available now. And implanted microchips would also work better.