Question

One of the tests that an invention must pass to be eligible for a patent is ____.

a. it must be a machine
b. it must be economical to produce
c. it must be capable of providing economic benefit
d. it must not be obvious to a person having ordinary skill in the same field

Answer 1

d. it must not be obvious to a person having ordinary skill in the same field.

Step-by-step explanation:

To be eligible for a patent, an invention has to pas through some tests and one of them is that it must not be obvious to a person with ordinary skill in the same field. This test can be called the "Unobviousness test".

Cheers.