Oh how wonderful, another patented banality that's supposed to make money through litigation. The patent describes in great detail and confusingly the banal exchange of identifications (email addresses) and a third party who mediates between two others to process the payment. Incredibly innovative and of course a great intellectual achievement, so naturally one must absolutely prohibit others from implementing it, because surely no one could come up with such a grandiose idea. It's not like it happens in everyday life or anything ...
At heise online news there's the original article.