Andyp,
Partially serrated CRKTs are not chisel ground. Please, lets not confuse terminology, differently we will speak each about another matter and do not understand each other completely.
Chisel ground blade is ground on one side (usually on right one, improper for right-hand user) and the other side (usually left) is completely flat, exactly like chisel.
All CRKT blades (excepting KISS series knives) are ground symmetrically, on the both sides. So they are not chisel ground.
More than likely the confusion source is that the partially serrated blades are sharpened only on right side, where the serrations are done. In my opinion it is also improper side for both serrations and single side sharpening what I do not like at all. However you always can resharpen such blade to conventional both sided sharpening. This would require just some skills, patience and decent whetstone, coarse diamond one would do the job the best.
In opposite it is impossible to regrind chisel ground blade.
Edited: opppsss, sorry, this should be corrected. Really right side of chisel ground blade is flat and left one is ground. I have written the original post in morning, probably not being waken up completely.