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:
Aug. 03, 2021
Filed:
Jan. 20, 2017
Applicant:
Council of Scientific and Industrial Research, Delhi, IN;
Inventors:
Jayaraj Nithyanandhan, Pune, IN;
Kadhiravan Shanmuganathan, Pune, IN;
Alagumalai Ananthan, Pune, IN;
Assignee:
COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH, Delhi, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); C01F 17/36 (2020.01); C09K 11/02 (2006.01); B82Y 15/00 (2011.01); B82Y 20/00 (2011.01); B82Y 30/00 (2011.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
C09K 11/7773 (2013.01); C01F 17/36 (2020.01); C09K 11/025 (2013.01); B82Y 15/00 (2013.01); B82Y 20/00 (2013.01); B82Y 30/00 (2013.01); B82Y 40/00 (2013.01); C01P 2002/72 (2013.01); C01P 2004/04 (2013.01); C01P 2004/16 (2013.01); C01P 2004/54 (2013.01); C01P 2004/62 (2013.01);
Abstract
The present invention provides a monodispersed lanthanum based upconverting microrods comprising β-NaYF:Yb, Erand β-NaYF:Yb, Tm, capped with oleic acid. The upconverting microrods, embedded in polymer matrices is used for making security tags and for sensing application. The process of preparation of the oleic acid capped upconverting microrods is also disclosed.