Editing Prior art (section)

=== Notable prior art databases ===
{{See also|Category:Patent search services}}<!-- Only links to wikipedia articles, PLEASE! -->
* [[DEPATISnet]] – Public patent database made available by the [[German Patent and Trademark Office]], serving as official publication source for German patents and patent applications and covering numerous other national and regional patent collections
* [[Espacenet]]—[[European Patent Office]] public patent literature database, with patents from many patent offices.
*[[Google Patents]]—public search engine from [[Google]] that indexes patents from the [[United States Patent and Trademark Office]] (USPTO) and other international patent offices, and machine-[[Cooperative Patent Classification|CPC]]-classified non-patent literature from [[Google Scholar]].
*[[World Intellectual Property Organization#PATENTSCOPE|PATENTSCOPE]] – the PATENTSCOPE public patent database provided by the [[World Intellectual Property Organization]] (WIPO) serves as official publication source for patent applications filed under the [[Patent Cooperation Treaty]] and covering numerous national and regional patent collections.
*[https://www.wipo.int/patent_register_portal/en/index.html Patent Register Portal] provides online patent hosts registers, gazettes, and legal-status-related information from over 200 jurisdictions and patent information collections. 
The Internet Archive [[Wayback Machine]] is recognized by the USPTO as a valid source of [[Internet as a source of prior art|prior art on the Internet]], though generally the date of archiving is considered the first published date, rather than the date on any documents that have been archived.<ref>[http://allthingspros.blogspot.com/2013/12/board-wayback-machine-archive-prior-art.html All Things Pros blog] {{Webarchive|url=https://web.archive.org/web/20150402151528/http://allthingspros.blogspot.com/2013/12/board-wayback-machine-archive-prior-art.html |date=2015-04-02 }}, Board decisions involving the Wayback Machine to show status as prior art (Part I), Sunday, December 29, 2013</ref><ref>[https://intellogist.wordpress.com/2011/02/01/the-wayback-machine-the-state-of-dating-online-materials/ The Wayback Machine: The State of Dating Online Materials] {{Webarchive|url=https://web.archive.org/web/20150402223027/https://intellogist.wordpress.com/2011/02/01/the-wayback-machine-the-state-of-dating-online-materials/ |date=2015-04-02 }}, Intellogist patent research blog, Posted February 1, 2011 by Chris Jagalla</ref>