The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 14, 2023

Filed:

Dec. 31, 2020
Applicant:

Genovate Biotechnology Co. Ltd., Hsin-Chu, TW;

Inventors:

Jen Chen, Hsin-Chu, TW;

Nai-tung Yao, Hsin-Chu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 215/46 (2006.01);
U.S. Cl.
CPC ...
C07D 215/46 (2013.01); C07B 2200/13 (2013.01);
Abstract

Two crystals of (S)-(+)-hydroxychloroquine sulfate. One crystal features diffraction peaks at 12.3±0.1°, 13.1±0.1°, 17.9±0.1°, 22.8±0.1°, 23.4±0.1°, 25.1±0.1°, and 26.3±0.1° as 2θ angles in a powder X-ray diffraction pattern. The other crystal features diffraction peaks at 12.8±0.1°, 14.5±0.1°, 16.7±0.1°, 17.6±0.1°, 20.2±0.1°, 21.4±0.1°, 23.8±0.1°, 25.7±0.1°, and 26.0±0.1° as 2θ angles in a powder X-ray diffraction pattern. Also disclosed are methods of preparing crystals of (S)-(+)-hydroxychloroquine sulfate.


Find Patent Forward Citations

Chen, Jen. (2023). Crystals of hydroxychloroquine sulfate (U.S. Patent No. 11578041). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11578041

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