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:
Dec. 11, 1979
Filed:
Sep. 20, 1978
Applicant:
Inventors:
Thomas E Sullivan, Potomac, MD (US);
Oscar L Wright, Monroe, LA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210 24 ; 210 40 ; 2605 / ; 2605 / ; 548308 ;
Abstract
The present invention pertains to a method for removing urea and creatinine from aqueous solutions by contacting such solutions with a polymer selected from the group consisting of: p-mercapto polystyrene; p-mercaptoacetic polystyrene; dinitro-p-mercaptoacetic polystyrene; p-nitropolystyrene; and p-amino polystyrene.