Personally, I suspect it was PPHM. Hard to force the two together when it comes to sector expertise, but my reasons were:

PPHM touts having 200+ patents.

A lot of interrelationship in place between the two companies.

Based on market cap and future potential revenue, it's a toss up as to which is worth more (at least to me).

PPHM is on a major exchange (Naz).

IMO, FWIW