Which of the Following Statements Is True of Patent Enforcement

Multiple Choice

Which of the following statements is true of patent enforcement?

A) The explicit purpose of patent law is to maintain secrecy of inventions for an indefinite time period.
B) Upon the expiration of a patent, an invention is removed from the public domain.
C) Beyond the duration of a patent, the owner can sue those who infringe on it.
D) Usually multiple intellectual property rights can cover the same article.
E) Patent laws include the right to use the invention.