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An opposition proceeding is an administrative process available under the patent and trademark law of most juridictions which allows third parties to dispute the validity of a granted patent or trademark. A patent is a set of exclusive rights granted by a state to a person for a fixed period of time in exchange for the regulated, public disclosure of certain details of a device, method, process or composition of matter (substance) (known as an invention) which is new, inventive, and...
A trademark or trade mark is a distinctive sign of some kind which is used by a business to uniquely identify itself and its products and services to consumers, and to distinguish the business and its products or services from those of other businesses. ...
In a two-party system a third party is a party other than the two dominant ones. ...
Patents
In Europe, third parties may dispute the validity of an issued patent using a post-grant opposition under European patent law. The opposition procedure before the European Patent Office (EPO) is a post-grant inter partes procedure intended to allow any European patent to be centrally opposed if it was wrongly granted. ...
European patent law covers a wide range of legislations including national patent laws, the Strasbourg Convention of 1963, the European Patent Convention of 1973, and a number of European Union directives and regulations. ...
In Germany, third parties may dispute the validity of a pending German patent application under German patent law. It has been suggested that this article or section be merged with patent prosecution. ...
Under United States patent law, an opposition proceeding is called a reexamination. The United States patent law is a first-to-invent patent legal framework in contrast to all other national patent laws. ...
In United States patent law, a reexamination is a process whereby a third party or inventor can have their patent application reexamined by a patent examiner to verify that it is valid. ...
In Japanese patent law, opposition procedure after an examiner's decision to grant a patent was abandoned in 2003; trial for invalidation serves as the alternative. Japanese patent law is referred to as Tokkyo hou in Japanese. ...
2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ...
Trademarks In the case of trademarks, third parties may use opposition proceedings to "oppose" the acceptance of a trademark application after it has been accepted and published for opposition purposes. If an opposition is defeated the trademark will proceed to registration. Some jurisdictions operate a "post-grant" opposition system, whereby opposition is not possible until after registration (eg. Japan).
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