Home page of the United States Patent and Trademark Office's main web site.

The Patent Office is the UK body that is responsible for Copyright, Designs, Patents and Trade Marks.

The Danish Patent and Trademark Office grants patents, registers utility models, trademarks, and designs.

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Latvijas Zinatou akadcmija Latvian Academy of Sciences Latvijas Republikas Patentu valde Patent Office of the Republic of Latvia Lapa atvcrta 1999.gada 29.novembri aja Interneta lapa Jus atradisiet informaciju par Latvija raditiem nozimigakiem izgudrojumiem, izcilakiem izgudrotajiem, Latvijas patentu sistcmu. Latvijas izgudrojumi un izgudrotaji Inventions and Inventors of Latvia In this Internet ...