Friday, July 10, 2026

Patent intelligence · US

US 6723716

7-acylamino-3-heteroarylthio-3-cephem carboxylic acid antibiotics and prodrugs thereof

expired A61PA61P31/04
Status expired
Linked drugs 1
Pipeline programs 6
Years to expiry 0
Applicant portfolio 95
Patent details — US 6723716

Quick answer

US 6723716 (7-acylamino-3-heteroarylthio-3-cephem carboxylic acid antibiotics and prodrugs thereof) is held by Essential Therapeutics, Inc.. Status: expired. Granted Apr 20, 2004. Expires Apr 15, 2024 (0 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
23
CPC classes
A61P, A61P31/04

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Frequently asked questions

What is US patent 6723716?

US 6723716 (7-acylamino-3-heteroarylthio-3-cephem carboxylic acid antibiotics and prodrugs thereof) is held by Essential Therapeutics, Inc.. Status: expired. Granted Apr 20, 2004. Expires Apr 15, 2024 (0 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 6723716?

Essential Therapeutics, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 95 pharmaceutical patents for this assignee.

When does US 6723716 expire?

Our index shows an expiration date of Apr 15, 2024 (0 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.