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:
Oct. 31, 1989
Filed:
Mar. 29, 1985
Applicant:
Inventors:
Michael J Zetlmeisl, St. Louis, MO (US);
William F Fahey, St. Louis, MO (US);
Assignee:
Petrolite Corporation, St. Louis, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23F / ; C23F / ;
U.S. Cl.
CPC ...
422 14 ; 208 47 ; 252390 ; 252394 ; 252396 ; 422 16 ; 210698 ;
Abstract
Water soluble corrosion inhibitors which exhibit low hydrocarbon carryunder are prepared by reaction of alkylenepolyamines and formaldehyde.