Tag Archives: reexamination

Update on the Central Reexamination Unit

The Central Reexamination Unit (CRU) at the USPTO handles a number of post grant proceedings by examiners selected for expert technical and advanced patent legal knowledge. Ex parte reexamination remains a comparatively low cost proceeding to challenge the validity of a patent. The CRU has recently taken on reissue applications and supplemental examination. At a recent Quarterly Meeting of the Patent Public Advisory Committee (PPAC) held on May 5,… More