Was there a patent application published on heparin biosynthesis?
Yes—Google Patents (via published patent applications) can show documents related to heparin biosynthesis, because many patent rights begin with a “published application” (often 18 months after the earliest filing date).
However, your question is specific (“heparin biosynthesis”), and the exact answer depends on which approach you mean by “biosynthesis” (for example, enzymatic synthesis, chemoenzymatic routes, engineered cell pathways, or producing heparin/heparan sulfate analogs). Different searches will turn up different application families.
How to check on Google Patents what was published (and when)
On Google Patents, you can filter by:
- Publication date (to see whether it was published yet)
- Status (Published application vs Granted patent)
- Inventor/assignee (to narrow to a specific company or research group)
A practical search pattern is to query:
- “heparin biosynthesis”
- “heparan sulfate biosynthesis”
- “enzymatic synthesis heparin”
- “heparin preparation” + specific pathway terms you care about
If you meant “heparin biosynthesis” specifically in the context of engineered cells
Search results can split into two common patent themes:
- Making heparin/heparan sulfate using biosynthetic machinery (enzymes, pathway engineering, or engineered production systems).
- Producing heparin-like materials/analogs (which may be described as biosynthesis or biosynthetic production even if they are not identical to pharmaceutical heparin).
Because phrasing varies, you may need to try both “heparin” and “heparan sulfate” terms when checking published applications.
Can you share the exact application (number or link) you’re looking for?
If you paste the Google Patents link, publication number (like “WO…”, “US… A1”), or the assignee/inventor name, I can tell you whether that specific heparin biosynthesis application was published and what its publication details are.