Wednesday, July 8, 2026

Patent intelligence · US

US 10231974

Pharmaceutical composition effective in preventing the adverse effects associated with the prolonged use of dihydrofolate reductase inhibito…

granted A61KA61K31/198A61K31/4415A61K31/519
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 13
Applicant portfolio 100
Patent details — US 10231974
Jurisdiction
US
Status
granted
Grant date
Mar 19, 2019
Expiration
Mar 14, 2039
Claims
14
CPC classes
A61K, A61K31/198, A61K31/4415, A61K31/519
View on Google Patents ↗

Quick answer

US 10231974 (Pharmaceutical composition effective in preventing the adverse effects associated with the prolonged use of dihydrofolate reductase inhibitors) is held by Compass Therapeutics LLC. Status: granted. Granted Mar 19, 2019. Expires Mar 14, 2039 (13 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
14
CPC classes
A61K, A61K31/198, A61K31/4415, A61K31/519, A61K31/525, A61K31/675

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Frequently asked questions

What is US patent 10231974?

US 10231974 (Pharmaceutical composition effective in preventing the adverse effects associated with the prolonged use of dihydrofolate reductase inhibitors) is held by Compass Therapeutics LLC. Status: granted. Granted Mar 19, 2019. Expires Mar 14, 2039 (13 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 10231974?

Compass Therapeutics LLC is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 100 pharmaceutical patents for this assignee.

When does US 10231974 expire?

Our index shows an expiration date of Mar 14, 2039 (13 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.