Huge News! Great catch Crunch.

Using Quantum Dots for Identification, Authentication, and Tracking of Objects
(Note - looks like this patent covers the complete range of anticounterfeiting biz)

Abstract
Systems, methods, apparatus and techniques for authenticating objects includes applying quantum dots to an object, wherein the quantum dots have an identified spectral response pattern, and recording data associating the object and the identified spectral response pattern.

I think this give QMC a monopoly on the most unhackable anticounterfeiting defense on the market. Will be interesting to see use cases for all supply chains.