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:
Mar. 02, 1993
Filed:
Jun. 04, 1992
Applicant:
Inventors:
Leonard F Lindoy, Cranbrook, Queensland, AU;
Peter Eaglen, Gulliven Townsville, 4812, Queensland, AU;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
210670 ; 210688 ; 210679 ;
Abstract
Metal ions are removed from solution by complexing with an immobilized polyethyleneimine, formed by first bonding a silane-propyl bridge to a substrate particle of silica or silicate, larger than 200 mesh. Then, polyethyleneimine is covalently bonded by a nitrogen to the bridge. Due to the spacing established by the bridge between the polyethyleneimine and substrate, the polyethyleneimine maintains high ion complexation capacity.
Lindoy, Leonard. (1993). Ion complexation by silica-immobilized polyethyleneimines (U.S. Patent No. 5190660). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5190660
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile