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:
May. 19, 2026
Filed:
Jan. 27, 2022
Applicant:
Ram Technology Co., Ltd., Yongin-si, KR;
Inventors:
Assignee:
RAM TECHNOLOGY CO., LTD., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/14 (2006.01); B01D 3/34 (2006.01); B01D 3/42 (2006.01); C01B 7/19 (2006.01);
U.S. Cl.
CPC ...
C01B 7/196 (2013.01); B01D 3/143 (2013.01); B01D 3/346 (2013.01); B01D 3/42 (2013.01);
Abstract
The present invention discloses a method and apparatus for purifying ultra-high purity hydrogen fluoride, which purify it through a continuous distillation process by putting crude hydrogen fluoride instead of hydrogen fluoride into a multi-stage distillation column as it is, and remove impurities in hydrogen fluoride through a contact with fluorine gas having the concentration of the Fgas automatically controlled depending on the content of arsenic fluoride that is an impurity.
Kil, June-Ing. (2026). Method and apparatus for purifying ultra-high purity hydrogen fluoride (U.S. Patent No. 12630422). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12630422
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile