1) Examination 2) Interrogation 3) Interrogatory 4) Redirect examination 
In United States patent law, a reexamination is a process whereby a third party or inventor can have a patent reexamined by a patent examiner to verify that the subject matter it claims is patentable. To have a patent reexamined, an interested party must submit prior art that raises a `substantial new question of patentability`. The Leahy-Smith .....
• (n.) A repeated examination. See under Examination.
Re`ëx·am`i·na'tion noun A repeated examination. See under Examination .