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Japan Patent Office

For international patent and us patent information, the Delphion intellectual property network's patent search database helps businesses perform intellectual property
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Patent List USPTO Web Patent Databases


Patent Office EPO - Espacenet EPO - Espacenet

PCT – The International Patent System

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Intellectual Property Office Home Page Intellectual Property (IP) results from the expression of an idea. So IP might be a brand, an invention, a design, a song


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JPO:Japan Patent Office Extending the Procedure Period of Time Affected by the 2011 Tohoku District - off the Pacific Ocean Earthquake (2nd Report)
The official website of the European Patent Office (EPO). Find information on applying and searching for patents, legal issues on patents, patent grants, rules and
The US Patent and Trademark Office (PTO) offers World-Wide Web (Web) access to bibliographic and full-text patent databases.
Patent search. Espacenet offers free access to more than 80 million patent documents worldwide, containing information about inventions and technical developments
The Patent Cooperation Treaty (PCT) assists applicants in seeking patent protection internationally for their inventions, helps patent Offices with their patent

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