sts Currently Provova doesn't produce Vasecpa. BASF owns Equateq, Equateq produces Vascepa API, since BASF owns both Pronova and Equateq I assume Pronova has the patented process for Vascepa.
Highly concentrated fatty acids for the pharmaceutical, nutraceutical and food sectors
When it comes to omega oils, purity is of the essence. At BASF’s cGMP-certified site in Callanish, Scotland, our experts oversee the commercial-scale manufacture of omega-3 and omega-6 products for the pharmaceutical, nutraceutical and food sectors. And for over 20 years, they have been developing novel purification methods for fatty acids, such as the industry-leading Maxomega™ and Crystalpure™ technologies. As a result, customers not only benefit from exceptionally pure products – they can also tap into BASF’s extensive expertise to enhance their own portfolio. http://www.pharma-ingredients.basf.com/Lipid_APIs/Home.aspx
BASF has no intention on infringing on Amarins 25 listed or NAO patents, they're Amarin's partner. BASF can share the Maxomega and Crystalpure technology with Pronova at will, it theirs.
When Amarin gets Anchor hopefully BASF will need both production faciliticies to supply API to Amarin.