Wednesday, July 8, 2026

Patent intelligence · US

US 9801813

Preservative-free ophthalmic pharmaceutical formulation

granted A61KA61K31/382A61K31/535A61K31/5377
Status granted
Linked drugs 2
Pipeline programs 6
Years to expiry 11
Applicant portfolio 95
Patent details — US 9801813
Jurisdiction
US
Status
granted
Grant date
Oct 31, 2017
Expiration
Oct 26, 2037
Claims
18
CPC classes
A61K, A61K31/382, A61K31/535, A61K31/5377
View on Google Patents ↗

Quick answer

US 9801813 (Preservative-free ophthalmic pharmaceutical formulation) is held by SENTISS PHARMA PRIVATE LIMITED. Status: granted. Granted Oct 31, 2017. Expires Oct 26, 2037 (11 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
18
CPC classes
A61K, A61K31/382, A61K31/535, A61K31/5377, A61K45/06, A61K47/02

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Frequently asked questions

What is US patent 9801813?

US 9801813 (Preservative-free ophthalmic pharmaceutical formulation) is held by SENTISS PHARMA PRIVATE LIMITED. Status: granted. Granted Oct 31, 2017. Expires Oct 26, 2037 (11 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9801813?

SENTISS PHARMA PRIVATE LIMITED is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 95 pharmaceutical patents for this assignee.

When does US 9801813 expire?

Our index shows an expiration date of Oct 26, 2037 (11 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.