Some insight here:
While Objectivists, libertarians and conservatives strongly agree on the principle of physical property rights, the picture is much more divided when it comes to ‘intellectual property’, a catch-all phrase for several different items, including patents, copyright and trademarks. In a landmark essay by Stephan Kinsella, Against Intellectual Property, argues that ‘Intellectual property’ is not only meaningless and harmful, it is in direct violation of the general principle of private property, and primarily constitutes a state-sanctioned creation of artificial scarcity, leading ultimately to poverty, not job creation and wealth.
The wider libertarian movement accepted the argument, put it into action (see www.mises.org/books) and moved on. Objectivists, on the other hand, maintain that what Ayn Rand spoke and practiced on the subject remains the unalterable truth.