Patent Law FAQ

This FAQ answers all your questions about patent law, patent procedure, and the patent examination process.

Here’s the complete FAQ:

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MPEP 110-Confidential Nature of International Applications (2)

International patent applications filed under the PCT are generally kept confidential and not made publicly available before international publication, which occurs soon after the expiration of 18 months from the priority date, according to PCT Article 21(2)(a). The International Bureau and International Searching Authorities are not allowed to give access to the application to any person or authority before publication unless requested or authorized by the applicant, with some exceptions.

As stated in MPEP 110:

“Although most international applications are published soon after the expiration of 18 months from the priority date, PCT Article 21(2)(a), such publication does not open up the Home Copy or Search Copy to the public for inspection, except as provided in 37 CFR 1.14(g).”

A national patent office may inform third parties that it has been designated in an international application and publish that fact. However, the publication can only contain limited bibliographic data, as specified in PCT Article 30(2)(b):

“Such information or publication may, however, contain only the following data: identification of the receiving Office, name of the applicant, international filing date, international application number, and title of the invention.”

The national office still cannot allow third parties to access the full application until the conditions outlined in PCT Article 30(2)(a) are met.

Patent Law (2)

International patent applications filed under the PCT are generally kept confidential and not made publicly available before international publication, which occurs soon after the expiration of 18 months from the priority date, according to PCT Article 21(2)(a). The International Bureau and International Searching Authorities are not allowed to give access to the application to any person or authority before publication unless requested or authorized by the applicant, with some exceptions.

As stated in MPEP 110:

“Although most international applications are published soon after the expiration of 18 months from the priority date, PCT Article 21(2)(a), such publication does not open up the Home Copy or Search Copy to the public for inspection, except as provided in 37 CFR 1.14(g).”

A national patent office may inform third parties that it has been designated in an international application and publish that fact. However, the publication can only contain limited bibliographic data, as specified in PCT Article 30(2)(b):

“Such information or publication may, however, contain only the following data: identification of the receiving Office, name of the applicant, international filing date, international application number, and title of the invention.”

The national office still cannot allow third parties to access the full application until the conditions outlined in PCT Article 30(2)(a) are met.