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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.:

US 12692583 B1

PDFFull Text
Date of Patent:
Jul. 28, 2026

Filed:

Dec. 26, 2019

Stainless steel for polymer fuel cell separator and method of manufacturing the stainless steel

Applicants:

Hyundai Bng Steel Co., Ltd., Changwon-si, KR;

Hyundai Steel Company, Incheon, KR;

Inventors:

Sang Kyu Choi, Changwon-si, KR;

Sang Heon Cho, Changwon-si, KR;

Jun Hee Lim, Changwon-si, KR;

Sung Moon Kim, Changwon-si, KR;

Kyung Soo Choi, Daegu, KR;

Yeon Soo Jeong, Gunpo-si, KR;

Jae Ho Lee, Yongin-si, KR;

Hyun UK Im, Yongin-si, KR;

Assignees:

HYUNDAI BNG STEEL CO., LTD., Changwon-si, KR;

HYUNDAI STEEL COMPANY, Incheon, KR;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Jonathan Johnson

Int. Cl.
CPC ...
C22C 38/38 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/20 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); H01M 50/403 (2021.01); H01M 50/431 (2021.01);
U.S. Cl.
CPC ...
C22C 38/38 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/20 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); H01M 50/403 (2021.01); H01M 50/431 (2021.01);
Abstract

Provided are stainless steel for a polymer fuel cell separator and a method of manufacturing the stainless steel, in which a surface modification technique based on wet processing is applied to a surface of stainless steel used for parts such as an anode and a cathode, etc., of a stack that generates electricity, thereby improving corrosion resistance and electric conductivity, and preventing moisture from being formed.

Find Patent Forward Citations

Choi, Sang. (2026). Stainless steel for polymer fuel cell separator and method of manufacturing the stainless steel (U.S. Patent No. 12692583). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12692583

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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