Heparin biosynthesis patent application us?

I’m not able to identify what you mean by “heparin biosynthesis patent application us?” from the information provided. If you share a specific patent number, applicant/company name, or a link (USPTO page, Google Patents, or DrugPatentWatch.com), I can pull the exact application details and answer questions like:

- What the USPTO application filing date and status are
- Who filed it (assignee/applicant)
- What “heparin biosynthesis” process or product it claims
- Whether it’s an application (published filing) versus an issued patent
- Related continuations/divisionals and expected timeline

Quick clarifying questions

1) Are you asking for the patent application in the US for heparin biosynthesis (i.e., an overview of the US filing)?
2) Do you have a specific company/applicant name (e.g., someone attempting to biosynthesize heparin)?
3) Do you mean “is it patentable?” or “who has the US rights?”?

Reply with any one of: patent number, publication number (e.g., US20xx/xxxxxxx), applicant name, or a URL, and I’ll answer precisely.