USPTO Data Sets

Contains both daily (front files) and a (backfile) created annually of patent assignments text derived from patent assignment recordations from August 1980 to present made at the USPTO for granted patents. The file format is eXtensible Markup Language (XML) in accordance with the Patent Assignment Daily XML (PADX) Version 0.3 Document Type Definition (DTD).

Refer to the following USPTO web site for additional patent data information (2001 through present) to include the Document Type Definitions (DTDs):  http://www.uspto.gov/products/xml-resources.jsp

*** 02/13/2015 NOTE: In anticipation of the Hague Agreement Concerning the International Registration of Industrial Designs (Hague Agreement) having effect in the United States in the future, the description for certain Data Type Definition (DTD) element names has been changed to accommodate international design applications. For more information, please see the documentation, "PADX-File-Description-v2_Hague.doc". Specifically, the description for the following DTD element names has been changed: country; doc-number; kind; and date. DTD element names are not changing. In the future, content relating to international design applications may be present in these DTD fields. The date the Hague Agreement will take effect with respect to these files is *** May 13, 2015. ***