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. 01, 1988
Filed:
Dec. 15, 1980
Applicant:
Inventor:
John A Muccitelli, Feasterville, PA (US);
Assignee:
Betz Laboratories, Inc., Trevose, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
422 16 ; 210750 ; 25218828 ; 252390 ; 252392 ;
Abstract
A method for reducing the amount of oxygen in an oxygen-containing aqueous medium comprising adding to the medium an effective amount of a hydrazine-free aqueous solution of an aminophenol compound or acid salt thereof having the formula ##STR1## where a=1, 2, or 3;