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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 12529691 B1

PDFFull Text
Date of Patent:
Jan. 20, 2026

Filed:

Nov. 25, 2019

Method for analysing the quantity of clay in a sand

Applicant:

Chryso, Issy les Moulineaux, FR;

Inventors:

Christophe Derly, Izy, FR;

Antoine Colas, Bourg-la-Reine, FR;

Assignee:

CHRYSO, Issy les Moulineaux, FR;

Attorney:

NIXON & VANDERHYE

Primary Examiner:

Jennifer Wecker

Assistant Examiner:

Michelle undefined Adams

Int. Cl.
CPC ...
G01N 33/38 (2006.01); C04B 28/02 (2006.01); C04B 40/00 (2006.01); G01N 31/22 (2006.01); C04B 14/06 (2006.01); C04B 14/10 (2006.01); C04B 103/32 (2006.01);
U.S. Cl.
CPC ...
G01N 33/383 (2013.01); C04B 28/02 (2013.01); C04B 40/0032 (2013.01); G01N 31/22 (2013.01); C04B 14/06 (2013.01); C04B 14/10 (2013.01); C04B 2103/32 (2013.01);
Abstract

Disclosed is use of a compound of formula (I) to determine the quantity of clay in a sand and/or to determine the amount of CMA compound to be added to a hydraulic binder composition using a sand:R—(OA)—XR  (I)where: Ris a linear or branched C1 to C4 alkyl groups, or a coloured compound; Ris a coloured compound; A, each the same or different, are independently a —CH—CH— group or —CH(CH)—CH— group; n is an integer of between 1 and 500, preferably between 4 and 250; and X is O or NH.

Find Patent Forward Citations

Derly, Christophe. (2026). Method for analysing the quantity of clay in a sand (U.S. Patent No. 12529691). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12529691

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

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