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:
Jul. 14, 2026

Filed:

Dec. 07, 2021
Applicant:

Osaka Gas Co., Ltd., Osaka, JP;

Inventors:

Masayuki Sugimoto, Osaka, JP;

Jun Tsubota, Osaka, JP;

Sae Ishikawa, Osaka, JP;

Assignee:

OSAKA GAS CO., LTD., Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/43 (2006.01);
U.S. Cl.
CPC ...
C07C 51/43 (2013.01); C07B 2200/13 (2013.01);
Abstract

A method for producing a hydroxyalkanoic acid crystal, comprising freeze-drying a solution containing a hydroxyalkanoic acid,


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