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:
Nov. 09, 1999
Filed:
Oct. 14, 1997
Applicant:
Inventors:
Wiley L Parker, Conroe, TX (US);
Alan E Goliaszewski, The Woodlands, TX (US);
Nancy R Calvert, Kingwood, TX (US);
Assignee:
BetzDearborn Inc., Trevose, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436104 ; 436 60 ; 436111 ; 436120 ; 436128 ; 436129 ; 436131 ; 436166 ; 436177 ; 436183 ;
Abstract
The present invention provides for a method and system for determining the concentration of a surfactant in a transparent hydrocarbon by performing the steps of adding a solid to the hydrocarbon; adding a second masking reagent to the hydrocarbon; mixing to form a dispersion; separating the dispersion from the mixture; and measuring the optical absorption of the dispersion.