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I remember the bright guy who got the USPTO to issue a patent on the wheelbarrow some 30 years ago. He sent letters to all wheelbarrow manufacturers demanding royalties for all present and past wheelbarrow production. Got blown out of court in a NY minute but he had the patent...for a while. Now it wouldn't take too much for the various manufacturers to write amicus curii (friend of the court) briefs outlining what they developed and what concepts they had publically revealed which would limit the effect of this case real fast. It has already been established that only an implementation of a concept can be patented, not the concept itself.
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