Editing Prior art (section)

== External links ==
=== Official institutions ===
* [[World Intellectual Property Organization]]
** [http://www.wipo.int/patentscope/search/en/search.jsf PatentScope], WIPO search tool for international and national patent collections.
** [http://www.wipo.int/ipdl/en/resources/links.jsp WIPO Intellectual Property Resources], a free public search tool gateway for WIPO's global collections of searchable IP data.
* [[United States Patent and Trademark Office]]
** [http://portal.uspto.gov/external/portal/pair Patent Application Information Retrieval] (PAIR), the USPTO search engine for patent and patent application file histories displays reasons why patents are issued; search by application number or customer number.
** [https://web.archive.org/web/20091002064647/http://www.uspto.gov/web/offices/ac/ido/ptdl/step7.htm Seven Step Strategy], USPTO patent search strategy.
* [[European Patent Office]]
** {{EPO Guidelines|b|vi}} ("The state of the art at the search stage")
** {{EPO Guidelines|g|iv}} ("State of the art", examination)
** {{EPO Case law book 2019|i|c|2}}: "State of the art"

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{{DEFAULTSORT:Prior Art}}
[[Category:Patent law]]

[[hu:Anterioritás]]