Patent recombinant heparin production us application?

It sounds like you’re asking about patent protection for recombinant heparin production—specifically whether there’s an “US application” (i.e., a US patent application) and how to find it.

Quick clarification: do you mean (A) a patent application filed in the US for recombinant heparin, or (B) the process/method for making recombinant heparin that you want to search for in US patent databases?

Meanwhile, here’s the most practical way to proceed.

How to find US patent applications on recombinant heparin

Use Google Patents or USPTO with these search terms:

Keywords to search

• “recombinant heparin”
• “heparosan” (commonly used as the precursor in recombinant heparin-like biosynthesis)
• “N-deacetylase N-sulfotransferase” (NDST)
• “N-sulfation” heparin biosynthesis
• “heparin/heparosan biosynthetic pathway”
• “enzymatic chemoenzymatic” + heparin (sometimes these are adjacent approaches)

Example Google Patents queries

• ("recombinant heparin" OR heparosan) site:patents.google.com US
• ("heparosan" AND (sulfotransferase OR NDST) AND heparin)

What you should expect in these patents

Many “recombinant heparin” efforts (or heparin analogs) are often described as:

• producing heparin/HS backbones via engineered microorganisms or enzymes,
• then performing post-processing sulfation steps (N- and O-sulfotransferases),
• because native heparin is structurally complex and “full heparin” is difficult to generate in one step.

If you share one detail, I can pinpoint the exact US filing

If you provide any of the following, I can likely narrow to the specific US application:

1. Company/assignee name (e.g., a biotech or university)
2. Inventor name
3. A patent number or publication number (USxxxxxxA1 / USxxxxxxB2)
4. Any snippet from the abstract (1 sentence is enough)

Tell me which of these you have

• Do you want me to find the US application(s), or are you asking whether there is patent coverage for a specific recombinant heparin production method?