This led to "round" cables being commercially produced; they're not actually twisted pair in the true sense (though the entire bundle may be twisted together).
I don't think so, this one looks to me like a perfect multiple twisted pair cable.
Each pair of wires is twisted separately, not only the whole bundle...
Anyway, now I don't think twisted pair cable will have any benefit, because the patent paper's sketches show, the special cable is NOT twisted pair.
Another point:
The linked patent paper also says:
"... is constructed from wire and fabric woven together to form a flat ribbon cable, having
resistance wires for signals alternating with standard lossless wires for ground to form a lossy transmission line."
But standard ribbon cable uses high conductible copper wire... This will cause reflections as mentioned and reduce bandwidth.
I don't know, if I need the full bandwidth so using a standard cable maybe OK.
Does anybody know, if there will be a signal level problem at lower frequencies, when you use a standard copper ribbon cable instead of the original resistance wire cable?
What is the resistance over one signal wire of the original cable?