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:
Apr. 28, 1987
Filed:
Mar. 18, 1986
Applicant:
Inventors:
Hon-Peng P Lau, Newark, DE (US);
Esther K Yang, Wilmington, DE (US);
Howard W Jacobson, Wilmington, DE (US);
Assignee:
E.I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428405 ; 530413 ; 428302 ;
Abstract
Chromium dioxide has favorable magnetic properties which make it desirable as a solid support in heterogeneous immunoassays. However, to be useful in such assays it must be protected against hydrolytic degradation. This invention provides magnetic particles useful in immunoassays having a core of CrO.sub.2 which has a reduced surface, the core coated with silica and further coated with a silane.
Lau, Hon-Peng. (1987). Coated chromium dioxide particles (U.S. Patent No. 4661408). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4661408
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile