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.

Date of Patent:
Oct. 13, 2026

Filed:

Apr. 15, 2022
Applicant:

Jnc Corporation, Tokyo, JP;

Inventors:

Kenji Kadoi, Kanagawa, JP;

Eri Iwamoto, Kanagawa, JP;

Tsuyoshi Nakama, Kanagawa, JP;

Assignee:

JNC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 20/285 (2006.01); B01D 15/26 (2006.01); B01J 20/28 (2006.01); C08B 3/06 (2006.01); C08L 1/12 (2006.01);
U.S. Cl.
CPC ...
B01J 20/285 (2013.01); B01D 15/265 (2013.01); B01J 20/28085 (2013.01); C08B 3/06 (2013.01); C08L 1/12 (2013.01); B01J 2220/4825 (2013.01); B01J 2220/50 (2013.01);
Abstract

A porous particle has a controlled 3D network skeleton and communicating pores that include the voids of the skeleton and penetrate from the particle surface to the inside, a method produces the same, and a filler for chromatography uses the same. The porous particle mainly includes cellulose acetate or cellulose, is spherical, and has a 3D network skeleton and communicating pores that include the voids of the skeleton and penetrate from the particle surface to the inside. The retention time of dextran with a molecular weight of 2 million at a flow rate of 0.4 ml/min in a column with an inner diameter of 0.78 cm and a length of 30 cm filled with the porous particles is 20 minutes or more.


Find Patent Forward Citations

Kadoi, Kenji. (2026). Porous particles, method for producing same, and filler for chromatography using same (U.S. Patent No. 12758944). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12758944

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

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