Mandatory licensing
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(1) that—
(A)
in the implementation of the requirements of section 7411, 7412, or 7521 of this title, a right under any United States letters patent, which is being used or intended for public or commercial use and not otherwise reasonably available, is necessary to enable any person required to comply with such limitation to so comply, and
(B)
there are no reasonable alternative methods to accomplish such purpose, and