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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 12145900 B1

PDFFull Text
Date of Patent:
Nov. 19, 2024

Filed:

May. 07, 2020

Process for filtering 2-acrylamido-2-methylpropane sulfonic acid

Applicant:

Spcm SA;

Inventors:

Cédrick Favero, Andrezieux Boutheon, FR;

Raphaël Doudin, Andrezieux Boutheon, FR;

Johann Kieffer, Andrezieux Boutheon, FR;

Benoît Legras, Andrezieux Boutheon, FR;

Assignee:

SNF Group;

Attorney:

Harris Beach PLLC

Primary Examiner:

Yate′ K Cutliff

Int. Cl.
CPC ...
C07C 309/15 (2006.01); B01D 33/073 (2006.01); B01D 33/46 (2006.01); B01D 33/60 (2006.01); B01D 33/62 (2006.01); C07C 303/44 (2006.01); C08F 20/58 (2006.01); C09K 8/035 (2006.01);
U.S. Cl.
CPC ...
C07C 309/15 (2013.01); B01D 33/073 (2013.01); B01D 33/466 (2013.01); B01D 33/60 (2013.01); B01D 33/62 (2013.01); C07C 303/44 (2013.01); C08F 20/58 (2013.01); C09K 8/035 (2013.01);
Abstract

A continuous process for filtering a suspension of 2-acrylamido-2-methylpropane sulfonic acid crystals by means of a rotary pressure filter equipped with a drum, a surface of which is provided with cells covered with a filter medium, the drum rotating within a fixed concentric cylinder comprising at least three zones sealed from each other, respectively a filtration zone, a washing zone and a discharge zone, each zone opening onto the cells.

Find Patent Forward Citations

Favero, Cédrick. (2024). Process for filtering 2-acrylamido-2-methylpropane sulfonic acid (U.S. Patent No. 12145900). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12145900

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

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