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. 18, 2021
Filed:
Mar. 13, 2019
Applicant:
American Sterilizer Company, Mentor, OH (US);
Inventors:
Thomas William Smith, St. Louis, MO (US);
Nancy-Hope Elizabeth Kaiser, Collinsville, IL (US);
Kathleen Ann Fix, Willoughby, OH (US);
Assignee:
American Sterilizer Company, Mentor, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 1/14 (2006.01); C11D 3/36 (2006.01); C11D 3/30 (2006.01); C11D 7/26 (2006.01); C11D 7/36 (2006.01); C11D 1/24 (2006.01); C11D 7/32 (2006.01); C11D 1/22 (2006.01); C11D 3/33 (2006.01); C11D 3/20 (2006.01);
U.S. Cl.
CPC ...
C11D 7/265 (2013.01); C11D 1/143 (2013.01); C11D 1/22 (2013.01); C11D 1/24 (2013.01); C11D 3/2082 (2013.01); C11D 3/30 (2013.01); C11D 3/33 (2013.01); C11D 3/361 (2013.01); C11D 7/3218 (2013.01); C11D 7/36 (2013.01);
Abstract
A concentrate aqueous composition for removing Type I and Type III rouge from various stainless-steel items. The liquid composition comprises oxalic acid, a phosphonic acid, and various amines. The use of an amine has been found to provide synergistic results in removal of the noted types of corrosion from various stainless-steel items that include medical instruments, machines, equipment, pipes, tools, mixing and storage vessels, and the like.