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. 16, 1994
Filed:
Nov. 09, 1990
Applicant:
Inventor:
Jon C Thunberg, Milford, NH (US);
Assignee:
Hampshire Chemical Corp., Lexington, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01D / ;
U.S. Cl.
CPC ...
423551 ; 423544 ; 562554 ; 562575 ; 2330 / ;
Abstract
Glycine and sodium sulfate decahydrate are separated from a starting aqueous solution containing glycine, sodium sulfate, and impurities, by forming a slurry which is a solid mixture of glycine and sodium sulfate decahydrate, followed by separation of the mixed crystals.