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:
May. 16, 1989
Filed:
Jul. 03, 1986
Applicant:
Inventor:
Harvey H Ashmead, Kaysville, UT (US);
Assignee:
Albion International, Inc., Clearfield, UT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
204 72 ; 204 / ; 556 50 ; 556134 ; 556148 ;
Abstract
Pharmaceutical grade amino acid chelates, free of interfering anions, are made by reacting an amino acid ligand with a metal member selected from the group consisting of elemental metals, metal oxides, metal hydroxides and metal carbonates in an aqueous environment wherein the ligand to metal mole ratio is at least 2:1 and recovering the amino acid chelate from said aqueous environment by means of spray or drum drying. The reaction may be carried out in the presence of non-interfering anions such as anions from citric acid, ascorbic acid, acetic acid, carbonic acid and ammonium and alkali metal salts thereof.