Applied DNA Sciences Inc (APDN)

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Anti-Copying Technology for 3D Printing: A Survey
by John Hornick | May 30, 2018

Co-author John Hornick has written and spoken extensively about the unique ability of 3D printing to democratize manufacturing and about how 3D printing could render the concept of “genuine products” meaningless. In tacit recognition that patents and copyrights may be impotent, or that IP enforcement may be cost-prohibitive, in the face of widespread 3D printing “away from control” (which means making products without anyone knowing about it or being about to control it), many companies and researchers are developing technologies to attempt to prevent unauthorized 3D printed copying, or to enable 3D printed products to be identified as genuine...

Among other efforts...

In his book, 3D Printing Will Rock the World, co-author John Hornick suggests using botanical DNA inks produced by Applied DNA Sciences to mark parts as genuine, as does the US Defense Logistics Agency.

https://3dprint.com/215217/anti-copying-technology/