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:
Feb. 24, 2026

Filed:

Sep. 30, 2021
Applicant:

Agilent Technologies, Inc., Santa Clara, CA (US);

Inventors:

Jeffrey Carl Braman, Carlsbad, CA (US);

Natalia Novoradovskaya, San Diego, CA (US);

David Long, Glen Mills, PA (US);

Bruce Richter, Wilmington, DE (US);

Derick Lucas, Wilmington, DE (US);

Assignee:

AGILENT TECHNOLOGIES, INC., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01G 49/08 (2006.01); B82Y 25/00 (2011.01); H01F 1/00 (2006.01); H01F 1/44 (2006.01);
U.S. Cl.
CPC ...
C01G 49/08 (2013.01); H01F 1/0054 (2013.01); H01F 1/445 (2013.01); B82Y 25/00 (2013.01); C01P 2004/64 (2013.01); C01P 2004/84 (2013.01); C01P 2006/12 (2013.01); C01P 2006/42 (2013.01);
Abstract

Silica-coated magnetic nanoparticles with greater ability to remain dispersed, and methods of making and using silica-coated magnetic nanoparticles. The magnetic nanoparticles comprise a core and a coating, where the core comprises FeOor other magnetic material and the coating has a thickness of from about 1.5 nm to about 2 nm. The magnetic nanoparticles are useful for preparing nucleic acids for analysis, by separating nucleic acids from other components and by normalizing nucleic acid concentrations.


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