In the wake of discussion about Stratasys' IP protection rights, Michael Weinberg has contributed his voice to the conversation. As the author of the petition before the US Copyright Office, Weinberg brings a unique knowledge to the table. He states that Stratasys does not, in fact, have the right to protect the materials used in their machines, harking back to the example Lexmark provided in the 2D printing arena. Read his full opinion here: http://3dprint.com/77334/3d-printing-copyright-office/