So, we are doing the research to make a protocol for the production of insulin. While the drug is off patent, it requires scientific research to create a protocol to correctly express, fold and purify a biologic drug like insulin. Just expressing pro-insulin from e-coli is not enough to create a usable drug.<p>Here is an article explaining the generic market for insulin: 
<a href="http:&#x2F;&#x2F;www.nejm.org&#x2F;doi&#x2F;full&#x2F;10.1056&#x2F;NEJMms1411398" rel="nofollow">http:&#x2F;&#x2F;www.nejm.org&#x2F;doi&#x2F;full&#x2F;10.1056&#x2F;NEJMms1411398</a><p>And here is an explanation of the difficulties of creating insulin written by our scientific adviser:
<a href="http:&#x2F;&#x2F;blog.indysci.org&#x2F;insulin-is-hard-but-not-impossible&#x2F;" rel="nofollow">http:&#x2F;&#x2F;blog.indysci.org&#x2F;insulin-is-hard-but-not-impossible&#x2F;</a>