[getsaf]

"Successful reexaminations should be a rare, exceptional case in a properly functioning patent system."

Unfortunately some 70% of reexaminations are confirmed to have some sort of issues. This is very shaky ground to be used to routinely afford millions/billions in damages and effectively "lock up" ideas that are obvious or unpatentable.

edit: add source http://ptolitigationcenter.com/essentials/common-questions/#...