PCT (Patent Cooperation Treaty)

Internationalize your patents with the PCT Agreement

The PCT system allows simplified international patent applications which in turn eases national filings.

The PCT (Patent Cooperation Treaty) was signed at the Washington Diplomatic Conference in May and June of 1970. The Treaty came into force in January 1978 and was was amended thrice, in 1979, 1984 and 2001. At the current time, there are 153 contracting states.

The three main objectives of this treaty are:

  1. The reduction of the bureaucracy and costs in applying for a patent in multiple States;
  2. The unification of the patent application procedure, valid in all the signatory States and;


Browse countries that are part of the PCT

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Patent Cooperation Treaty (PCT)

PCT Details and Timeframes

Priority claim


Substantive Examination


Body responsible for non-use cancellations

Special Case

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Time until registration

Special Case

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Opposition Period

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Use Requirement Period

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  •  Power of attorney, simply signed.
  •  Deed of Assignment.
  •  Certificate of change of name.
  •  Certificate of change of name.
  •  License agreement.

Why Inventa?

Experts in Intellectual Property Protection

Inventa is an Intellectual Property firm, specializing in the protection and internationalization of trademarks, patents, industrial designs, copyright and domains.


With over 45 years of experience in Intellectual Property, Inventa has served thousands of clients, from small entrepreneurs and startups, to multinationals holding large trademark and patent portfolios, and other entities dealing with R&D on a daily basis. Furthermore, our experience allows us to understand the caveats of the different industries, since we maintain relationships with clients from different sectors, including food and beverages companies, communications, IT, pharmaceutical, manufacturers, oil & gas companies, financial institutions, business services companies and more.

Tech drive

Inventa recognizes that in this day and age, information management and the internet have taken over many aspects of business. To accompany the changing needs of our clients, over the last few years we have increased our activity in the area of technological infrastructures and information systems. In this way, Inventa seeks to respond to the different demands of both the market and its clients.

Global Network

Thanks to our large network of contacts and associate level, we offer our clients a vast team of highly-specialized professionals in the Intellectual Property field and related strategic sectors. Our professionals guarantee highly-personalized and efficient accompaniment of all our services.

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