Wednesday, July 8, 2026

Patent intelligence · US

US 9539228

Composition containing lysine as a nutritional supplement or treatment in the case of herpes

granted A61KA61K31/198A61K31/375A61K31/4415
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 10
Applicant portfolio 11
Patent details — US 9539228
Jurisdiction
US
Status
granted
Grant date
Jan 10, 2017
Expiration
Jan 5, 2037
Claims
19
CPC classes
A61K, A61K31/198, A61K31/375, A61K31/4415
View on Google Patents ↗

Quick answer

US 9539228 (Composition containing lysine as a nutritional supplement or treatment in the case of herpes) is held by Reiner Rittinghausen. Status: granted. Granted Jan 10, 2017. Expires Jan 5, 2037 (10 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
19
CPC classes
A61K, A61K31/198, A61K31/375, A61K31/4415, A61K31/519, A61K31/525

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Frequently asked questions

What is US patent 9539228?

US 9539228 (Composition containing lysine as a nutritional supplement or treatment in the case of herpes) is held by Reiner Rittinghausen. Status: granted. Granted Jan 10, 2017. Expires Jan 5, 2037 (10 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9539228?

Reiner Rittinghausen is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 11 pharmaceutical patents for this assignee.

When does US 9539228 expire?

Our index shows an expiration date of Jan 5, 2037 (10 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.