Wednesday, July 8, 2026

Patent intelligence · US

US 8728524

Biomaterials consisting of sulphated hyaluronic acid and gellan to be used in the prevention of spinal adhesions

granted A61KA61K31/715A61K31/728A61K31/737
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 8
Applicant portfolio 69
Patent details — US 8728524
Jurisdiction
US
Status
granted
Grant date
May 20, 2014
Expiration
May 15, 2034
Claims
21
CPC classes
A61K, A61K31/715, A61K31/728, A61K31/737
View on Google Patents ↗

Quick answer

US 8728524 (Biomaterials consisting of sulphated hyaluronic acid and gellan to be used in the prevention of spinal adhesions) is held by Anika Therapeutics S.r.l.. Status: granted. Granted May 20, 2014. Expires May 15, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
21
CPC classes
A61K, A61K31/715, A61K31/728, A61K31/737, A61K31/795, A61K45/06

More from Anika Therapeutics S.r.l.

Related pharmaceutical patents in our USPTO index.

  1. US 12415779

    Processes of making 3-fluoro-5-(((1S,2aR)-1,3,3,4,4-pentafluoro-2a-hydroxy-2,2a,3,4-tetrahydro-1H-cyclopenta[cd]inden-7-yl)oxy)-benzonitrile and polymorphs thereof

    NIKANG THERAPEUTICS, INC. · Expires Sep 11, 2045

    granted
  2. US 12391642

    Tetrahydro-1H-cyclopenta[cd]indene derivatives as hypoxia inducible factor-2(alpha) inhibitors

    NIKANG THERAPEUTICS, INC. · Expires Aug 14, 2045

    granted
  3. US 12331026

    Sulfonamido derivatives as cyclin-dependent kinase 2 inhibitors

    NIKANG THERAPEUTICS, INC. · Expires Jun 12, 2045

    granted
  4. US 12264167

    Fused tricyclic ring derivatives as SRC homology-2 phosphate inhibitors

    NIKANG THERAPEUTICS, INC. · Expires Mar 27, 2045

    granted
  5. US 12171741

    2,3-dihydrobenzo[b]thiophene derivatives as hypoxia inducible factor-2(alpha) inhibitors

    NIKANG THERAPEUTICS, INC. · Expires Dec 19, 2044

    granted
  6. US 12077506

    Indane derivatives as hypoxia inducible factor-2(α) inhibitors

    NIKANG THERAPEUTICS, INC. · Expires Aug 29, 2044

    granted
  7. US 11939303

    Sulfamate derivatives of 4-(1-phenyl-1H-[1,2,3]triazol-4-yl)-phenol, derivatives of 4-(1-phenyl-1H-[1,2,3]triazol-4-yl)-phenol, their medical use and the method of obtaining 4-(1-phenyl-1H-[1,2,3]triazol-4-yl)-phenyl sulfamate derivatives

    Politechnika Gdanska · Expires Mar 21, 2044

    granted
  8. US 11753366

    Tetrahydro-1H-cyclopenta[cd]indene derivatives as hypoxia inducible factor-2(alpha) inhibitors

    NIKANG THERAPEUTICS, INC. · Expires Sep 7, 2043

    granted

Frequently asked questions

What is US patent 8728524?

US 8728524 (Biomaterials consisting of sulphated hyaluronic acid and gellan to be used in the prevention of spinal adhesions) is held by Anika Therapeutics S.r.l.. Status: granted. Granted May 20, 2014. Expires May 15, 2034 (8 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 8728524?

Anika Therapeutics S.r.l. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 69 pharmaceutical patents for this assignee.

When does US 8728524 expire?

Our index shows an expiration date of May 15, 2034 (8 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.