These articles are some of the interesting articles dealing with ownership of copyright and patentable inventions produced by an AI machine or robot.
Machine learning to machine owning: Redefining the copyright ownership from the perspective of Australian, US, UK and EU Law. European Intellectual Property Review, (2018) 40 (11), pp. 722-728. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3293518
Artificial Intelligence, Copyright and Accountability in the 3A Era: The Human-like Authors Are Already Here: A New Model, 2017 M. L. R<. 659 https://digitalcommons.law.msu.edu/cgi/viewcontent.cgi?article=1199&context=lr
When Artificial Intelligence Systems Produce Inventions: The 3A Era and an Alternative Model for Patent Law (March 1, 2017). Cardozo Law Review, http://cardozolawreview.com/wp-content/uploads/2018/08/RAVID.LIU_.39.6.5-1.pdf
Recognizing Artificial Intelligence (AI) as Authors and Investors under U.S. Intellectual Property Law, 24 Rich. J.L. & Tech. i (2018), https://jolt.richmond.edu/files/2018/04/Pearlman_Recognizing-Artificial-Intelligence-AI-as-Authors-and-Inventors-Under-U.S.-Intellectual-Property-Law.pdf
Also, have a look at these videos about machine generated art: