Yes, we get asked this question! James Plotkin discusses in his paper "The Impact of 3D Printing on Canadian Trademark Law: Selected Issues and Potential Solutions." 3D printing technology invites new challenges to existing legal understanding and rarely is there a technology that is so disruptive that it fundamentally challenges the law. One solution is to "Embrace the Chaos" and Plotkin outlines approaches from Hasbo, Disney and Coca-Cola for thriving in the face of this disruptive technology.
Congratulations to Mr. Plotkin for winning the Donald F. Sim Q.C. Memorial Writing Prize this paper.