MakerBot applied for material mixing extruder patent. The patent description is vague and it doesn't describe much details, only that two filaments type mix in some sort of filament mixer. This could provide color mixing or material properties change (ie. for support material).
This patent application could be some sort of "defensive" patenting, it doesn't mean that the prototype even exists and it doesn't need to be approved by patent authorities.
If this is real application we might see this technology in future Makerbots.
Makerbot extruder patent with extensive description:
http://www.google.com/patents/US20140034214
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Ceterum censeo: the copyright and patent system is completely broken and must be reformed or, even better, fully removed.
This patent application could be some sort of "defensive" patenting, it doesn't mean that the prototype even exists and it doesn't need to be approved by patent authorities.
If this is real application we might see this technology in future Makerbots.
Makerbot extruder patent with extensive description:
http://www.google.com/patents/US20140034214
Ceterum censeo: the copyright and patent system is completely broken and must be reformed or, even better, fully removed.