Franklin, Andrews, Kramer & Edelstein

[janice shell]

My guess would be: not very often.

There's this, though it addresses a very different issue:

https://www.researchgate.net/publication/278714983_Frankenstein_and_the_law_some_reflexions_on_transhumanism

Interestingly, though, we also have the question of Arizona's "Frankenstein Bill", so called because it was created from several "dead" bills that were cobbled together. And oddly enough, it has to do with election law, though it seems to have no direct application to the Pennsylvania case:

https://arizonalawreview.org/the-frankenstein-bill-house-bill-2305-and-direct-democracy/