In any classification system you're going to get false positives and false negatives. We could improve the situation through better funding to the Patent Offic

In any classification system you're going to get false positives and false negatives. We could improve the situation through better funding to the Patent Office but given the breadth of things getting patented it's a really fundamentally hard problem and thank goodness for recent changes to US patent law making it easier to invalidate bad patents.