What scale patterns are you interested in exactly?
From what I was able to figure out, you can play the major scale patterns over the relative minor scale without a problem, since the notes from these two scales are the same. For example, the C major and A minor scales, which are relatives, share the same notes, the only difference being in the order in which they are played. This is also true for the C pentatonic and A minor pentatonic. You just have to emphasize on either the minor scale root or the major scale root from time to time. At least that’s what I do.
I hope this helps.