You can't have your cake and eat it. If you want to use copyright protection, you should only be able to do so after making your work public. If you then destr

You can't have your cake and eat it. If you want to use copyright protection, you should only be able to do so after making your work public. If you then destroy your original work or refuse to let other people use it on reasonable terms, you can't sue people for copyright infringement when they use it. > Would same logic also apply to a patents of a company that creates 10 different prototype engine designs, and decides to only bring one of them to market? I think you shouldn't be able to use patent protection unless you also make your design available on the market for a reasonable fee.