Wednesday, July 8, 2026

Patent intelligence · US

US 11559533

Compositions of bile acids and phenylbutyrate compounds

granted A61KA61K31/192A61K31/216A61K31/575
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 17
Applicant portfolio 9
Patent details — US 11559533
Jurisdiction
US
Status
granted
Grant date
Jan 24, 2023
Expiration
Jan 19, 2043
Claims
18
CPC classes
A61K, A61K31/192, A61K31/216, A61K31/575
View on Google Patents ↗

Quick answer

US 11559533 (Compositions of bile acids and phenylbutyrate compounds) is held by Amylyx Pharmaceuticals, Inc.. Status: granted. Granted Jan 24, 2023. Expires Jan 19, 2043 (17 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
18
CPC classes
A61K, A61K31/192, A61K31/216, A61K31/575, A61K47/02, A61K47/26

More from Amylyx Pharmaceuticals, Inc.

Related pharmaceutical patents in our USPTO index.

  1. US 12246027

    Compositions of bile acids and phenylbutyrate compounds

    Amylyx Pharmaceuticals, Inc. · Expires Mar 6, 2045

    granted
  2. US 12186330

    Compositions for improving cell viability and methods of use thereof

    Amylyx Pharmaceuticals, Inc. · Expires Jan 2, 2045

    granted
  3. US 12138272

    Methods and compositions for treating amyotrophic lateral sclerosis

    Amylyx Pharmaceuticals, Inc. · Expires Nov 7, 2044

    granted
  4. US 11583542

    Compositions of bile acids and phenylbutyrate compounds

    Amylyx Pharmaceuticals, Inc. · Expires Feb 16, 2043

    granted
  5. US 11071742

    Compositions for improving cell viability and methods of use thereof

    Amylyx Pharmaceuticals, Inc. · Expires Jul 22, 2041

    granted
  6. US 10857162

    Compositions for improving cell viability and methods of use thereof

    Amylyx Pharmaceuticals, Inc. · Expires Dec 3, 2040

    granted
  7. US 10251896

    Compositions for improving cell viability and methods of use thereof

    Amylyx Pharmaceuticals, Inc. · Expires Apr 4, 2039

    granted

Frequently asked questions

What is US patent 11559533?

US 11559533 (Compositions of bile acids and phenylbutyrate compounds) is held by Amylyx Pharmaceuticals, Inc.. Status: granted. Granted Jan 24, 2023. Expires Jan 19, 2043 (17 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 11559533?

Amylyx Pharmaceuticals, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 9 pharmaceutical patents for this assignee.

When does US 11559533 expire?

Our index shows an expiration date of Jan 19, 2043 (17 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.