Business Law

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

The United States Patent and Trademark Office (USPTO) is the federal agency for granting U.S. patents and registering trademarks.

Search U.S. trademark application and registration information.

CPC is the patent classification system that is currently used by the United States and the European Patent Office. Other countries may also move to this system in the future. CPC is based on the International Patent Classification (IPC) system, but features many more sub-categories for more precise searching.