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:
Jan. 25, 2000
Filed:
Jan. 28, 1998
Applicant:
Inventors:
Rodica Holt, Far Hills, NJ (US);
Joseph E Oberlander, Phillipsburg, NJ (US);
Eleazar B Gonzalez, Bloomfield, NJ (US);
Pilarcita L Ranque, Flemington, NJ (US);
Maria F Calindas, New Brunswick, NJ (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436164 ; 436166 ; 436178 ;
Abstract
The present invention is a process for precisely measuring the concentration of a nonionic surfactant in an aqueous alkaline solution. The process comprises extracting the surfactant into an organic solvent, separating the solvent and forming a colored complex that can be quantitatively measured to give the actual concentration of the surfactant.