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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 12616958 B1

PDFFull Text
Date of Patent:
May. 05, 2026

Filed:

Jul. 08, 2022

Micro-separator including 3d ordered nanoshell structure of ceramic-polymer composite for gas chromatography, method for fabricating the same and method for separating gas mixture using the same

Applicant:

Korea Advanced Institute of Science and Technology, Daejeon, KR;

Inventors:

Seokwoo Jeon, Daejeon, KR;

Kisun Kim, Daejeon, KR;

Caiyan Qin, Daejeon, KR;

Yongseong Cha, Daejeon, KR;

Assignee:

Korea Advanced Institute of Science and Technology, Daejeon, KR;

Attorney:

DALY, CROWLEY, MOFFORD & DURKEE, LLP

Primary Examiner:

Christopher P Jones

Int. Cl.
CPC ...
B01D 53/02 (2006.01); B01J 20/285 (2006.01); B01J 20/30 (2006.01); B01J 20/32 (2006.01); G01N 30/60 (2006.01); B82Y 15/00 (2011.01); B82Y 40/00 (2011.01); G01N 30/02 (2006.01);
U.S. Cl.
CPC ...
B01J 20/285 (2013.01); B01J 20/3085 (2013.01); B01J 20/3291 (2013.01); G01N 30/6095 (2013.01); B01J 2220/46 (2013.01); B01J 2220/54 (2013.01); B82Y 15/00 (2013.01); B82Y 40/00 (2013.01); G01N 2030/025 (2013.01);
Abstract

A micro-separator for gas chromatography includes a base substrate having a trench defining a micro-column, and a three-dimensional (3D) porous ceramic-polymer composite disposed in the micro-column and having pores that three-dimensionally connected to each other with periodicity. The 3D porous ceramic-polymer composite includes a ceramic nano-structure, which forms an array of three-dimensionally arranged nano-shells, and a reaction-activating layer combined on a surface of the ceramic nano-structure and including a polymeric reaction-activating material. A thickness of the 3D porous ceramic-polymer composite is 10 μm to 20 μm, a column length of the 3D porous ceramic-polymer composite is 30 cm to 70 cm, and a shell thickness of the ceramic nano-structure is 20 nm to 60 nm. The micro-separator may have improved separation performance and durability.

Find Patent Forward Citations

Jeon, Seokwoo. (2026). Micro-separator including 3d ordered nanoshell structure of ceramic-polymer composite for gas chromatography, method for fabricating the same and method for separating gas mixture using the same (U.S. Patent No. 12616958). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12616958

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

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