IANAL, but it looks like he might have a case for prior art, if he published his methods prior to patent being issued.<p><a href="http://www.ipwatchdog.com/inventing/prior-art/" rel="nofollow">http://www.ipwatchdog.com/inventing/prior-art/</a><p>Still, this puts the burden of proof on the person claiming prior art. I'd like to see a reform of patent law that would make the infringing patent holder responsible for the legal fees for proving the prior art, if it's valid.<p>That would:<p>1. Force the potential infringer to do a more rigorous search prior to filing the patent.<p>2. Gives the person with prior art a little more leverage in negotiations.<p>Am I misguided?