Halozyme Therapeutics Inc (HALO)

[biotechinvestor1]

Wasn’t there another korean company with different recombinant human hyaluronidase (not caffeine) that had an agreement with Merk for Keytruda? If I remember correctly, Merk dumped them and decided to do its own SC alone which up until recently I thought was without any hyaluronidase. However, the study I posted shows that it is with hyaluronidase. Whose? Will it not be a patent violation?