A patent

Multiple Choice

The amount by which the value of a company exceeds the fair market value of a company's net assets if purchased separately

Is an exclusive right granted to its owner to manufacture and sell a machine or device, or to use a process, for $50$ years

Is an exclusive right granted to its owner to manufacture and sell a machine or device, or to use a process, for $20$ years

Gives the owner the exclusive right to publish and sell a musical or literary work during the life of the creator plus $20$ years

Gives the owner the exclusive right to publish and sell a musical or literary work during the life of the creator plus $50$ years