Section 780.50 - Applicants(a) Any owner or licensee of a patent licensed under section 158 or subsections b or e of section 153 of the Act may file an application with the Board for the determination of a reasonable royalty fee.(b) Any owner or licensee of a patent licensed under subsections b or e of section 153 of the Act may file an application with the Board for the modification of any terms and conditions of the license.(c) Any person who has made an invention or discovery useful in the production or utilization of special nuclear material or atomic energy, has complied with the provisions of section 151c, but, under the Act, is not entitled to a royalty for such invention or discovery, may file an application for an award.(d) Any owner of a patent application that contains restricted data not belonging to the United States which the Department has communicated to any foreign nation may make application for just compensation pursuant to section 173 of the Act.(e) Any patent applicant, whose patent is withheld because of a secrecy order issued at the request of the Department may, beginning at the date the patent applicant is notified that, except for such order, the application is otherwise in condition for allowance, apply for compensation for the damage caused by the secrecy order and/or for the use of the invention by the Government, resulting from any disclosure to the Department required by the Invention Secrecy Act.