The term of art is "Chattle", as in "Trespass on Chattle". e.g., start by reading section IIa of this:

https://digital.sandiego.edu/cgi/viewcontent.cgi?article=316...

Essentially, Intel employees are 'chattle', and while communicating with them doesn't transfer ownership or control of them away from Intel, it does interfere with Intel's ongoing use of them.

The spirit is the same, but I don't think we're talking about the same thing. It's "chattel", and according to wikipedia, for whatever that's worth, it's "trespass to chattels".

I didn't see any reference there about treating people in a customer relationship as the "chattel" referred to in this law.

It wasn’t originally meant to be applied to employees. That’s a modern interpretation. It seems inevitable that some court will extend the interpretation to customers too.