Last Updated: September 24, 2026

Details for Patent: 9,333,270


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Which drugs does patent 9,333,270 protect, and when does it expire?

Patent 9,333,270 protects CYTALUX and is included in one NDA.

This patent has thirty-five patent family members in twelve countries.

Summary for Patent: 9,333,270
Title:Synthesis and composition of amino acid linking groups conjugated to compounds used for the targeted imaging of tumors
Abstract:The present disclosure relates to compounds that are useful as near-infrared fluorescence probes, wherein the compounds include i) a pteroyl ligand that binds to a target receptor protein, ii) a dye molecule, and iii) a linker molecule that comprises an amino acid or derivative thereof. The disclosure further describes methods and compositions for making and using the compounds, methods incorporating the compounds, and kits incorporating the compounds.
Inventor(s):Philip S. Low, Sumith A. Kularatne, Sakkarapalayam M. Mahalingam
Assignee: Purdue Research Foundation
Application Number:US14/010,098
Patent Claim Types:
see list of patent claims
Use; Composition;

Drugs Protected by US Patent 9,333,270

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
On Target Labs CYTALUX pafolacianine sodium SOLUTION;INTRAVENOUS 214907-001 Nov 29, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y Y CYTALUX IS AN OPTICAL IMAGING AGENT INDICATED IN ADULT PATIENTS WITH OVARIAN CANCER AS AN ADJUNCT FOR INTRAOPERATIVE IDENTIFICATION OF MALIGNANT LESIONS ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 9,333,270

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2013381391 ⤷  Start Trial
Australia 2013383382 ⤷  Start Trial
Australia 2013383386 ⤷  Start Trial
Australia 2017203340 ⤷  Start Trial
Brazil 112015022810 ⤷  Start Trial
Canada 2902205 ⤷  Start Trial
Canada 2903727 ⤷  Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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