B9creator.com

https://www.google.co.za/patents/WO2014126837A2?cl=en&dq=b9creator&hl=en&sa=X&ei=-CGEVOuWI4WV7AbInYDQCA&ved=0CCMQ6AEwAQ Other approaches, such as the B9Creator™ 3- dimensional printer marketed by B9Creations of Deadwood, South Dakota, USA, employ a sliding build plate. See, e.g., M. Joyce, US Patent App. 2013/0292862 and Y. Chen et al., US Patent App. 2013/0295212 (both Nov. 7, 2013); see also Y. Pan et al„ J. Manufacturing Sci. and Eng. 134, 051011-1 (Oct. 2012). Such approaches introduce a mechanical step that may complicate the apparatus, slow the method, and/or potentially distort the end product.

b9creations
https://www.google.co.za/patents/US20130292862?dq=2013/0292862&hl=en&sa=X&ei=jWCEVM3ZM7OM7AatyoGICg&ved=0CBsQ6AEwAA

https://www.google.co.za/search?tbo=p&tbm=pts&hl=en&q=inassignee:%22B9Creations,+LLC%22