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.
Patent No.:
Date of Patent:
Jul. 08, 2025
Filed:
Nov. 26, 2020
Applicant:
Yonsung Fine Chemical Co., Ltd., Hwaseong-si, KR;
Inventors:
Seung Woo Kim, Suwon-si, KR;
Se Gyo Jung, Hwaseong-si, KR;
In A Jung, Yongin-si, KR;
Hyunik Shin, Suwon-si, KR;
Assignee:
YONSUNG FINE CHEMICAL CO., LTD., Hwaseong-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 401/00 (2006.01);
U.S. Cl.
CPC ...
C07C 401/00 (2013.01);
Abstract
A new and improved method for preparing maxacalcitol and an intermediate therefor is provided. The method is an efficient and cost-effective process for preparing maxacalcitol and an intermediate therefor.