No that is not my argument; what I am saying is that we are both right. If there is a matter that is covered under the law, for example work for hire (which is

No that is not my argument; what I am saying is that we are both right. If there is a matter that is covered under the law, for example work for hire (which is covered under title 17), then there is no need for a written contract (or other written conveyance of transfer). If however the transfer happens under a matter not covered by law then a written contract is required; say for example a transfer as a part of the sale of a company. But my final point is still valid (as is supported by standard employment contracts covering IP rights even though it is covered under title 17) that if something is important to you get it written down in a contract and make sure it is checked by your own lawyer.