Which of the following statements concerning patents is
correct?

(a) Costs incurred in connection with securing a patent,
as well as attorney’s fees and other unrecovered costs of a successful
legal suit to protect the patent, can be capitalized as part of
patent costs. Therefore, answer (a) is correct because legal fees
and other costs incurred to successfully defend a patent should
be amortized along with the acquisition cost over the remaining
economic life of the patent. Answer (b) is incorrect because legal
fees and other direct costs incurred in registering a patent should
be capitalized and amortized on a straight-line basis over its economic
life, not five years. Answers (c) and (d) are incorrect because
research and development costs related to the development
of the product, process or idea that is subsequently
patented must be expensed as incurred, not capitalized and amortized.