Patent & Trademark Resources on the Web

U.S. Patent & Trademark Office permits printing and saving of issued patents and published applications one page at a time. It uses TIFF format.

European Patent Office (EPO) permits free access to more than 110 million patent documents using limited fields, keywords, IPC, and ECLA from 82 countries. It uses international and European classification. Patent families are available. Translations are available for several languages.

This source makes available issued patents and published applications in PDF format.

This source makes available issued patents and published applications in PDF format.

This source makes available issued patents and published applications in PDF format. Searching capabilities exist but results are incomplete.

Recommended standard codes for the representation of states, other entities and organizations. From the Handbook on Industrial Property Information and Documentation. (PDF)

Recommended standard codes for the identification of different kinds of patent documents. From the Handbook on Industrial Property Information and Documentation. (PDF)