Wednesday, July 8, 2026

Patent intelligence · US

US 9994527

Modified amino acids

granted A61PA61P29/00A61P35/00A61P37/02
Status granted
Linked drugs 1
Pipeline programs 6
Years to expiry 12
Applicant portfolio 34
Patent details — US 9994527
Jurisdiction
US
Status
granted
Grant date
Jun 12, 2018
Expiration
Jun 7, 2038
Claims
15
CPC classes
A61P, A61P29/00, A61P35/00, A61P37/02
View on Google Patents ↗

Quick answer

US 9994527 (Modified amino acids) is held by Sutro Biopharma, Inc.. Status: granted. Granted Jun 12, 2018. Expires Jun 7, 2038 (12 years remaining) — relevant for patent-cliff and LOE planning.

Key facts

Grant date
Expiration
Claims
15
CPC classes
A61P, A61P29/00, A61P35/00, A61P37/02

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Frequently asked questions

What is US patent 9994527?

US 9994527 (Modified amino acids) is held by Sutro Biopharma, Inc.. Status: granted. Granted Jun 12, 2018. Expires Jun 7, 2038 (12 years remaining) — relevant for patent-cliff and LOE planning.

Who owns US 9994527?

Sutro Biopharma, Inc. is listed as the applicant in USPTO PatentsView records indexed by NovaPharmaNews. We track 34 pharmaceutical patents for this assignee.

When does US 9994527 expire?

Our index shows an expiration date of Jun 7, 2038 (12 years from today). Confirm material dates against USPTO, FDA Orange Book, or qualified counsel before contractual decisions.