» European Patent Office The European Patent Office handles patent applications for the Contracting States of the European Patent Convention.
» US Patent and Trademark Office (USPTO) For patent searching, the US Patent and Trademark Office (USPTO) site is good, since it allows full-text Boolean searches.
» UK Intellectual Property Office The UK Intellectual Property Office (formerly The Patent Office) has many good resources and links.
» Japan Patent Office The Japan Patent Office is in the top two Offices for number of patent applications filed (the other is the USPTO).
» World Intellectual Property Organization The World Intellectual Property Organization handles international patent, trade mark and design applications.
» Office for Harmonization in the Internal Market The Office for Harmonization in the Internal Market handles applications for trade marks and designs in the European Union.
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