Submission + - SPAM: Oak Ridge National Laboratory Joins The Patent Troll Ranks
The original creator, Torbjørn Ludvigsen, is crowd-funding a defence against the patent at [spam URL stripped]...
"The patent should never have been awarded," says Pearce. "If you read the patent, the problem they were trying to solve, was how to get rid of the gantry systems for large building-style 3D printing. They did this by copying the open-source Hangprinter concept, only scaling it up and using concrete instead of plastic."
Link to Original Source