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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 12311363 B1

PDFFull Text
Date of Patent:
May. 27, 2025

Filed:

Mar. 12, 2020

Hba1c assay slide and method of making same

Applicant:

Siemens Healthcare Diagnostics Inc., Tarrytown, NY (US);

Inventors:

Aaron Kauffmann, Elkhart, IN (US);

Jeffrey Mayfield, South Bend, IN (US);

David Ledden, Elkhart, IN (US);

Assignee:

Siemens Healthcare Diagnostics Inc., Tarrytown, NY (US);

Attorneys:

SIEMENS CORPORATION

DANIEL STAUDT

JOSE DE LA ROSA

MICHELE CONOVER

HISASHI WATANABE

FRANK NUZZI

MICHAEL WALLACE

MICHAEL KRENICKY

PETER KENDALL

THOMAS BURTON

PETER WITHSTANDLEY

ELLEN FIELITZ

CHRISTOPHER SUKHAPHADHANA

JOSHUA RYAN

JEFFREY RICHMOND

XIN YANG

BRENNAN BRADLEY

LAWRENCE CHEN

MARK BRAUN

TINA ALONSO

DINA HALAJIAN

DAVID A HUBBARD

RANA BASU

Primary Examiner:

Jennifer Wecker

Assistant Examiner:

Oyeleye Alexander Alabi

Int. Cl.
CPC ...
B01L 3/00 (2006.01); B01F 23/00 (2022.01); B01F 23/41 (2022.01); B01F 101/23 (2022.01); B23Q 17/24 (2006.01); C07K 14/705 (2006.01); C12M 1/34 (2006.01); C12Q 1/04 (2006.01); C12Q 1/18 (2006.01); C12Q 1/686 (2018.01); G01N 21/3577 (2014.01); G01N 21/359 (2014.01); G01N 21/39 (2006.01); G01N 21/45 (2006.01); G01N 21/64 (2006.01); G01N 21/77 (2006.01); G01N 21/78 (2006.01); G01N 27/414 (2006.01); G01N 30/12 (2006.01); G01N 30/68 (2006.01); G01N 30/70 (2006.01); G01N 30/72 (2006.01); G01N 30/88 (2006.01); G01N 33/00 (2006.01); G01N 33/18 (2006.01); G01N 33/50 (2006.01); G01N 33/53 (2006.01); G01N 33/543 (2006.01); G01N 33/68 (2006.01); G01N 33/74 (2006.01); G01N 35/00 (2006.01); G01N 35/10 (2006.01); G06T 7/00 (2017.01); G06T 7/90 (2017.01); H10K 10/46 (2023.01); H10K 85/00 (2023.01); H10K 85/20 (2023.01);
U.S. Cl.
CPC ...
B01L 3/502707 (2013.01); B01L 3/50273 (2013.01); B01L 2200/16 (2013.01); B01L 2300/087 (2013.01); B01L 2300/0887 (2013.01); B01L 2300/161 (2013.01); B01L 2400/0406 (2013.01);
Abstract

Microfluidic devices, method for making and using same are disclosed. The microfluidic device can be made by applying a reagent in liquid form into a sample treatment site within a substrate base. The substrate base has hydrophilic properties bordering a flow channel, and has an application site, the sample treatment site and an analytical site. The flow channel is sized and configured so as to draw a sample applied into the application site to the analytical site through the sample treatment site by capillary action. The reagent is freeze-dried within the sample treatment site.

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