17 According to the R.O.C. Patent Act, which of the following circumstances shall the effects of aninvention patent right extend to?
(A) Acts are exhibited at a non-commercial conference.
(B) Necessary acts are made to exploit the invention for research.
(C) Acts are done by a person who has been exploiting the invention or making all the necessary preparations for doing such act in this country before the filing date of the invention. However, the person has learned of the invention from the patent applicant for more than twelve months and the patent applicant has made a statement reserving his right to a patent being granted.
(D) After the sale of a patented product made by the patentee or made under consent of the patentee overseas, a consumer uses or resells such product domestically.