I've
talked with a number of people from large technology companies
who patent anything and everything just to proactively defend against
such carpetbaggers. Unfortunately, then management changes, business
philosophy changes and the patent thicket gets more and more dense....
And sadly, the USPTO pretty much asserts that it can no longer
examine patent applications with any scrutiny. I am aware of at
least one patent granted in the last decade for a perpetual-motion
machine, for example.
Got a link? I'd love to read that patent.
Peace... Sridhar