Patent estate

IntraBio — Patent Portfolio

1 drug with active patents · 3 active patents · 0 expired · 0 biologics with BPCIA exclusivity

AI-enriched 3/3 patents with grounded plain-English summaries · sourced from FDA Orange Book + Purple Book · updated 2026-05-18

Loss of exclusivity calendar · next 12 years

Drugs facing US patent or BPCIA biologic exclusivity loss per year. Click any year to see the broader cliff calendar for the industry.

1 2037

Patent estate by drug

Aqneursa (LEVACETYLLEUCINE)

Cliff 2037 · 11y
Method of Use 3
  • US11400067 Vuln 75 2037-04-19
    This patent protects a method of treating lysosomal storage disorders by administering acetyl-leucine or a pharmaceutically acceptable salt thereof.
  • US12433862 Vuln 75 2037-04-19
    This patent protects a method of treating lysosomal storage disorders by administering acetyl-leucine or a pharmaceutically acceptable salt thereof.
  • US12433863 Vuln 75 2037-04-19
    This patent protects a method of treating lysosomal storage disorders by administering acetyl-leucine or a pharmaceutically acceptable salt thereof.

Patent classification breakdown · active patents

By US patent type. Method-of-use patents are most vulnerable to design-around; composition-of-matter patents are the strongest protection.

  • Method of Use 3 patents

Sources

  • FDA Orange Book — small-molecule patents listed against approved NDAs.
  • FDA Purple Book — biologic BPCIA 12-year reference product exclusivity.
  • USPTO Patent Public Search — title, abstract, claim text grounding.
  • AI summaries generated by Drug Landscape, grounded in source claim text.

Patent term extensions (PTR, SPC, pediatric exclusivity) may shift effective expiry. Not legal advice.

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