Wednesday, July 8, 2026

Patent intelligence · US

US 10537581

Vaginal inserted estradiol pharmaceutical compositions and methods

granted A61KA61K31/565A61K31/57A61K47/14
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 14
Applicant portfolio 100
Patent details — US 10537581
Jurisdiction
US
Status
granted
Grant date
Jan 21, 2020
Expiration
Jan 16, 2040
Claims
11
CPC classes
A61K, A61K31/565, A61K31/57, A61K47/14
View on Google Patents ↗

Quick answer

US 10537581 (Vaginal inserted estradiol pharmaceutical compositions and methods) is held by Compass Therapeutics LLC. Status: granted. Granted Jan 21, 2020. Expires Jan 16, 2040 (14 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
11
CPC classes
A61K, A61K31/565, A61K31/57, A61K47/14, A61K9/0036, A61K9/06

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Frequently asked questions

What is US patent 10537581?

US 10537581 (Vaginal inserted estradiol pharmaceutical compositions and methods) is held by Compass Therapeutics LLC. Status: granted. Granted Jan 21, 2020. Expires Jan 16, 2040 (14 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 10537581?

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 10537581 expire?

Our index shows an expiration date of Jan 16, 2040 (14 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.