Not precisely relevant to the “innovation” in the article, but is there any smaller-scale application of electrostatic paint deposition in the form of some kind of hand tool?

I.e. is there an electrostatic version of an airbrush, that doesn’t require a compressor, but rather (presumably) a voltage source alligator-clipped to the paint tank and the work surface?

I can’t picture quite how such a thing would work, because I feel like the paint wouldn’t really have enough energy to jump out of the nozzle on its own.