For the same reason, a bunch of stupid patents for stuff like "touch screen paswords" where granted where plenty of prior art existed, Basically, at the time of

For the same reason, a bunch of stupid patents for stuff like "touch screen paswords" where granted where plenty of prior art existed, Basically, at the time of first invention software could not be patented, so when patents finally where allowed, no previous patent existed. My bad for being too far ahead of my time :(