Wednesday, July 8, 2026

Patent intelligence · US

US 6638914

Pharmaceutical administration of adenosine agonists

expired A61KA61K31/70A61PA61P35/00
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 23
Patent details — US 6638914
Jurisdiction
US
Status
expired
Grant date
Oct 28, 2003
Expiration
Oct 23, 2023
Claims
14
CPC classes
A61K, A61K31/70, A61P, A61P35/00
View on Google Patents ↗

Quick answer

US 6638914 (Pharmaceutical administration of adenosine agonists) is held by CAN-FITE BIOPHARMA LTD.. Status: expired. Granted Oct 28, 2003. Expires Oct 23, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
14
CPC classes
A61K, A61K31/70, A61P, A61P35/00, A61P35/02, A61P37/00

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Frequently asked questions

What is US patent 6638914?

US 6638914 (Pharmaceutical administration of adenosine agonists) is held by CAN-FITE BIOPHARMA LTD.. Status: expired. Granted Oct 28, 2003. Expires Oct 23, 2023 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6638914?

CAN-FITE BIOPHARMA LTD. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 23 pharmaceutical patents for this assignee.

When does US 6638914 expire?

Our index shows an expiration date of Oct 23, 2023 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.