With the present Mexican Patent Law, which entered into effect on October, 1994, we may say that although in the biological field there are some specific exceptions, it is possible to consider that practically all types of these inventions are susceptible of patentability in Mexico.
Said exceptions are basically represented by the following non-patentable inventions according to Article 16 of said Law:
a) Essentially biological processes for the production, reproduction and propagation of plants and animals (Breeders' rights).
b) Naturally occurring biological and genetic material.
c) Animal races.
d) The human body and the living parts constituting the same.
e) Plant varieties.