**19 U.S. § 1337 (Section 337 of the Tariff Act of 1930) - Unfair practices in import trade**
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(a) Unlawful activities; covered industries; definitions
(1) Subject to paragraph (2) [requiring that an industry related to the patented articles exists or is in the process of being established], the following are unlawful, and when found by the Commission to exist shall be dealt with, in addition to any other provision of law, as provided in this section:
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(B) **//The importation into the United States//**, the sale for importation, or the sale within the United States after importation by the owner, importer or consignee, **//of articles that//** --
(i) **//infringe a valid and enforceable United States patent//** . . .