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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 12332174 B1

PDFFull Text
Date of Patent:
Jun. 17, 2025

Filed:

Mar. 24, 2017

Method and system for determination of starch in a sample

Applicant:

Kemira Oyj, Helsinki, FI;

Inventors:

Lari Vähäsalo, Littoinen, FI;

Marjatta Piironen, Oulu, FI;

Iiris Joensuu, Espoo, FI;

Assignee:

KEMIRA OYJ, Helsinki, FI;

Attorney:

Espatent Oy

Primary Examiner:

Elizabeth A Robinson

Assistant Examiner:

Brittany I Fisher

Int. Cl.
CPC ...
G01N 21/53 (2006.01); G01N 15/14 (2024.01); G01N 15/1434 (2024.01); G01N 21/07 (2006.01); G01N 21/59 (2006.01); G01N 21/77 (2006.01); G01N 21/84 (2006.01); G01N 33/34 (2006.01);
U.S. Cl.
CPC ...
G01N 21/532 (2013.01); G01N 15/1434 (2013.01); G01N 21/59 (2013.01); G01N 21/77 (2013.01); G01N 21/84 (2013.01); G01N 33/343 (2013.01); G01N 2015/1486 (2013.01); G01N 2021/8416 (2013.01); G01N 2201/121 (2013.01);
Abstract

In a starch concentration measurement, a liquid sample is conducted from a liquid sample such as pulp suspension or filtrate of a paper, board or tissue process. An iodine solution is added to the sample, and a light absorbance or transmittance of the sample is measured at a wavelength longer than about 650 nm, for example longer than about 700 nm. The measured absorbance or transmittance of the sample is converted into the starch concentration of the sample by a predefined correlation between a starch concentration and a light absorbance or transmittance.

Find Patent Forward Citations

Vähäsalo, Lari. (2025). Method and system for determination of starch in a sample (U.S. Patent No. 12332174). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12332174

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

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