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:
Jan. 13, 2026

Filed:

Aug. 22, 2022
Applicant:

National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);

Inventors:

Gihoon Choi, Livermore, CA (US);

Robert Meagher, Tracy, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F 7/02 (2006.01); B01L 3/00 (2006.01); G01N 33/543 (2006.01); H01F 7/20 (2006.01); H01F 41/04 (2006.01);
U.S. Cl.
CPC ...
G01N 33/54386 (2013.01); B01L 3/502761 (2013.01); G01N 33/54326 (2013.01); H01F 7/0205 (2013.01); H01F 7/20 (2013.01); H01F 41/04 (2013.01); B01L 2200/0647 (2013.01); B01L 2300/0645 (2013.01); B01L 2300/0654 (2013.01); B01L 2300/0819 (2013.01);
Abstract

A multiplanar electromagnetic array is disclosed herein, where the array includes a first electromagnetic coil in a first plane, a second electromagnetic coil in a second plane, and a third electromagnetic coil in a third plane. A microactuator is configured to energize electromagnetic coils in the array in sequence, thereby forming a moving electromagnetic field that moves a permanent magnet positioned above the multiplanar electromagnetic array. Movement of the permanent magnet effectuates desired movement of a bead that is in a channel of an immunoassay device.


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