Патентке шағымдану тәртібі

Procedure for challenging a patent
An opposition proceeding is an administrative process available under the patent and trademark law of many jurisdictions which allows third parties to formally challenge the validity of a pending patent application ("pre grant opposition"), of a granted patent ("post grant opposition"), or of a trademark.

In the context of the proceedings at the European Patent Office (EPO), third parties may challenge the validity of a granted European patent by filing a post grant opposition under the European Patent Convention (EPC). The term for filing an opposition with the EPO is nine months from the publication of the mention of the grant of the European patent in the European Patent Bulletin. The term for filing an opposition with the National Institute of Industrial Property (INPI) is nine months from the grant of the French patent.

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 (e. g. Japan).

In Canada, any third party can file a statement of opposition to stop a trademark from being registered for at least one of the reasons set out in the Trademarks Act and Trademarks Regulations. A statement of opposition can only be filed during the two month period after a trademark application is approved by the Canadian Intellectual Property Office (CIPO) and advertised in the Trademarks Journal. The trademark applicant and opponent then submit pleadings, evidence and arguments to the Trademarks Opposition Board (an administrative body within CIPO), which hears and makes decisions in opposition proceedings. The Board can either refuse the trademark application (in whole or in part) or reject the opposition. This decision can be appealed to the Federal Court of Canada by both the trademark applicant and opponent.