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A request for a reexamination can be filed by anyone at any time during the period of enforceability of a patent. To request a reexamination, one must submit a "request for reexamination" which includes (1) a statement pointing out each "substantial new question of patentability based on prior patents and printed publications; (2) an identification and explanation for every claim for which ...
The opposition system is integral to the patent framework for several reasons: [1] Quality assurance: It enhances the quality and reliability of granted patents by providing a mechanism to weed out patents that should not have been granted due to non-compliance with legal requirements such as novelty, inventive step, and industrial ...
An inter partes review is used to challenge the patentability of one or more claims in a U.S. patent only on a ground that could be raised under 35 U.S.C. §§ 102 or 103 (non-obviousness), and only on the basis of prior art consisting of patents or printed publications. [3]
A re-examination is a proceeding conducted by the patent office after the grant of a patent in which the validity of a patent is re-examined at the request of the patentee or third party, [17] as provided by the applicable law. [27] In some countries, a re-examination system is provided as an alternative or complement to the opposition system ...
Many national and regional patent offices provide procedures for reconsidering whether or not a given patent is valid after grant. Under the European Patent Convention, any person can file an opposition provided they act promptly after the patent is granted. In the United States, members of the public can initiate reexamination proceedings ...
Ironically, Congress intended that the reexamination process should have just the opposite effect: "Patent office reexamination will greatly reduce, if not end, the threat of legal costs being used to 'blackmail' such [patent-] holders into allowing patent infringements or being forced to license their patents for nominal fees."