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. 27, 1999
Filed:
Sep. 19, 1997
Applicant:
Inventors:
Donald W Thomson, Northport, NY (US);
Luis Henry Garay, Rockville Centre, NY (US);
Jason D Horowitz, Hewlett, NY (US);
Assignee:
LeaRonal Inc., Freeport, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423305 ; 2330 / ;
Abstract
Methods for the production of nickel or ammonium hypophosphite are disclosed, including combining sodium hypophosphite with nickel or ammonium sulfate to produce sodium sulfate and nickel or ammonium hypophosphite, and lowering the temperature of the solution containing the sodium sulfate to crystallize out the sodium sulfate.