Section 337 investigations conducted by the U.S. International Trade Commission most often involve claims regarding intellectual property rights, including allegations of patent infringement and trademark infringement by imported goods. Both utility and design patents, as well as registered and common law trademarks, may be asserted in these investigations. Other forms of unfair competition involving imported products, such as infringement of registered copyrights, mask works or boat hull designs, misappropriation of trade secrets or trade dress, passing off, and false advertising, may also be asserted. Additionally, antitrust claims relating to imported goods may be asserted. The primary remedy available in Section 337 investigations is an exclusion order that directs Customs to stop infringing imports from entering the United States. In addition, the Commission may issue cease and desist orders against named importers and other persons engaged in unfair acts that violate Section 337. Expedited relief in the form of temporary exclusion orders and temporary cease and desist orders may also be available in certain exceptional circumstances. Section 337 investigations, which are conducted pursuant to 19 U.S.C. § 1337 and the Administrative Procedure Act, include trial proceedings before administrative law judges and review by the Commission.