Earlier quoted context omitted.
There has been a surge in stupid patents because Obama changed the rules to allow patents to be granted to the first person to file for patent, even if the device of process has been in use for 100 years.
Patents are only valid if they relate to new and inventive stuff. USA came in to line with the rest of the World which uses first-to-file (first to invent means the litigious will always challenge inventorship which is exceedingly difficult to determine as there isn't necessarily a paper-trail). USA patent seem, to me, to be worse than other places, and first to file works elsewhere suggesting that is not the problem…
Patents are not like registered marks where you can apply for the same thing over and over; only the original inventor or its employer can apply, otherwise lour patent would be invalidated due to prior art.