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.:
Date of Patent:
Oct. 28, 2025
Filed:
May. 07, 2020
Applicant:
Myneip B.v., Harderwijk, NL;
Inventors:
Assignee:
MYNEIP B.V., Harderwijk, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/44 (2006.01); B03C 1/033 (2006.01); B03C 1/28 (2006.01); B82Y 25/00 (2011.01); B82Y 40/00 (2011.01); H01F 41/00 (2006.01);
U.S. Cl.
CPC ...
H01F 1/445 (2013.01); B03C 1/0332 (2013.01); B03C 1/288 (2013.01); H01F 41/00 (2013.01); B03C 2201/18 (2013.01); B82Y 25/00 (2013.01); B82Y 40/00 (2013.01);
Abstract
The invention is directed to a method and a system for producing a ferrofluid comprising providing a stock solution with Fe(II) and Fe(III); mixing the stock solution with a base to form magnetic nanoparticles and a spent solution, said method further comprising a separation step of separating the nanoparticles from the spent solution by applying a magnet to immobilize the nanoparticles and remove at least part of the spent solution as supernatant from the immobilized nanoparticles. In another aspect, the invention is directed to the resulting ferrofluid.