MPEP 1800

Patent Cooperation Treaty

Quick Statistics:

Number of Pages:  199 pgs
Sections:  1801 – 1896

Brief Summary:

A Patent Cooperation Treaty (PCT) application enables a U.S. applicant to file one international application (known as the international phase) to the U.S. and have that international application acknowledged as a regularly nationally filed application (known as the national phase) in as many member PCT countries as he or she designates.

An international PCT application goes through the international phase initially. Subsequently, the national phase will begin and the application is examined in the same manner as if it had been filed as a regular, nonprovisional application in each country designated in the international application.

Key Terms:

International Searching AuthorityInventor’s CertificateInternational Bureau
National StagePatent Cooperation TreatyReceiving Office

37 CFR (Code of Federal Regulations):

37 CFR 1.496Examination of international applications in the national stage.
37 CFR 1.475Unity of invention before the International Searching Authority, the International Preliminary Examining Authority and during the national stage.

35 USC (United States Code):

35 USC 361Receiving Office.
35 USC 363International application designating the United States: Effect.

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