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. 28, 2026
Filed:
Dec. 07, 2021
Applicant:
Kolon Industries, Inc., Seoul, KR;
Inventors:
Assignee:
KOLON INDUSTRIES, INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); B01D 63/02 (2006.01); B01D 69/08 (2006.01); B01D 69/10 (2006.01); B01D 69/12 (2006.01); H01M 8/04119 (2016.01);
U.S. Cl.
CPC ...
B01D 63/031 (2022.08); B01D 63/021 (2013.01); B01D 69/087 (2013.01); B01D 69/10 (2013.01); B01D 69/1216 (2022.08); H01M 8/04149 (2013.01); B01D 2323/22 (2013.01); B01D 2323/39 (2013.01); B01D 2325/025 (2013.01); B01D 2325/026 (2013.01); B01D 2325/02831 (2022.08); B01D 2325/04 (2013.01); B01D 2325/20 (2013.01); B01D 2325/24 (2013.01);
Abstract
The present invention relates to a hollow fiber membrane including, sequentially from the center: a first layer having a high-density sponge structure including pores with a size of 1 nm or less; a second layer including a finger-shaped structure; and a third layer having a low-density sponge structure including pores with a size of 10 to 1,000 μm, and to a method for producing the hollow fiber membrane.