Wednesday, July 8, 2026

Patent intelligence · US

US 9523691

Use of the olfactomedin-4 protein (OLFM4) in colorectal cancer diagnosis

granted A61KA61K31/4745A61K31/513A61K31/519
Status granted
Linked drugs 3
Pipeline programs 6
Years to expiry 10
Applicant portfolio 14
Related coverage 5
Patent details — US 9523691

Quick answer

US 9523691 (Use of the olfactomedin-4 protein (OLFM4) in colorectal cancer diagnosis) is held by INSTITUT DE CANCEROLOGIE DE L'OUEST. Status: granted. Granted Dec 20, 2016. Expires Dec 15, 2036 (10 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
11
CPC classes
A61K, A61K31/4745, A61K31/513, A61K31/519, A61K31/555, A61K33/243

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Frequently asked questions

What is US patent 9523691?

US 9523691 (Use of the olfactomedin-4 protein (OLFM4) in colorectal cancer diagnosis) is held by INSTITUT DE CANCEROLOGIE DE L'OUEST. Status: granted. Granted Dec 20, 2016. Expires Dec 15, 2036 (10 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9523691?

INSTITUT DE CANCEROLOGIE DE L'OUEST is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 14 pharmaceutical patents for this assignee.

When does US 9523691 expire?

Our index shows an expiration date of Dec 15, 2036 (10 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.