The following have been appointed by the PCT Contracting States as International Searching Authorities (ISAs): the national Offices of Australia, Austria, Brazil, Canada, China, Chile, Egypt, Finland, India, Israel, Japan, the Philippines, the Republic of Korea, the Russian Federation, Singapore, Spain, Sweden, Turkey, Ukraine and the United States of America, and the following regional Offices, the Eurasian Patent Office, the European Patent Office, the Nordic Patent Institute and the Visegrad Patent Institute. The availability of a particular ISA to the nationals or residents of a country is determined by the receiving Office where the international application was filed. Some receiving Offices provide a choice of more than one competent ISA. If your receiving Office is one of those, you can choose any one of them, taking into account differing requirements relating to language, fees, etc.
PCT Patent Filing
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Introduction
Patent Cooperation Treaty (PCT)
The Patent Cooperation Treaty (PCT) assists applicants in seeking patent protection internationally for their inventions, helps patent offices with their patent granting decisions, and facilitates public access to a wealth of technical information relating to those inventions.
By filing one international patent application under the PCT, applicants can simultaneously seek protection for an invention in a large number of countries.
Benefits
Benefits of PCT Patent Filing
Process
PCT Patent Filing In Easy Steps
Document Checklist
Documents required to PCT Patent Filing
Name, address, and nationality of the inventor in case not been furnished in the “Request” part of the international application
Instrument of assignment or transfer in case the applicant is not the inventor
Document evidencing a change of name of the applicant if the change occurred after the international filing date and has not been reflected in a notification from the International Bureau.
Power of attorney in case a patent agent is appointed
Certified copy of the translation. A valid certificate from a translator is needed in case the priority application is non-English
Furnishing, where applicable, of a nucleotide and/or amino acid sequence listing in electronic Form
Faq
Frequently Asked Questions (FAQ)
You are entitled to file an international patent application if you are a national or resident of a PCT Contracting State. If there are several applicants named in the international application, only one of them needs to comply with this requirement.
The supplementary international search report is generally similar in content and appearance to the main international search report; it contains a listing of references to patent documents and other technical literature which may affect the patentability of the invention claimed in the international application. However, it does not repeat documents which have already been cited in the international search report, unless this is necessary because of new relevance when read in conjunction with other documents discovered during the supplementary international search. On occasion, the supplementary international search report may contain more detailed explanations than those in the main international search report. This is due to the fact that, unlike the main international search, no written opinion is established with the supplementary international search report, and these additional details are helpful for a full understanding of the references listed.
If so, when? Until international publication (18 months after the priority date), no third party is allowed access to your international application unless you as applicant request or authorize it. If you wish to withdraw your application (and you do so before international publication), international publication does not take place and, as a consequence, no access by third parties is permitted. However, when international publication occurs, certain documents in the international application file are made available on PATENTSCOPE together with the published international application, for example, the written opinion of the ISA and any informal comments on the written opinion.
Once you have entered the national phase, the national or regional patent Offices concerned begin the process of determining whether they will grant you a patent. Any examination which these Offices may undertake should be made easier by the PCT international search report and the written opinion and even more by an international preliminary examination report.
