Legally, is an exclusive license of intellectual property equal to a "sale"of the intellectual property?

Question

More specifically, for tax purposes...

Naturally, the exclusive license may be granted at different stages of the development of the intellecutal property. This question relates to the exclusive license a drug development company receives from a patent holder - the license to develop, test, register and market the drug that is produced from the patent.

Answer 1

No, an exclusive license generally means that you have the right to buy or sell. If Sony issues you an exclusive license to sell their Playstation 3, then that means that you and only you can do it. However, Sony retains all legal rights to the Playstation 3.