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.

Date of Patent:
Dec. 16, 2014

Filed:

Sep. 12, 2011
Applicants:

Xuedong Song, Alpharetta, GA (US);

Karen Meloy Goeders, Atlanta, GA (US);

Ning Wei, Roswell, GA (US);

Inventors:

Xuedong Song, Alpharetta, GA (US);

Karen Meloy Goeders, Atlanta, GA (US);

Ning Wei, Roswell, GA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/75 (2006.01); A61L 15/56 (2006.01); G01N 33/50 (2006.01); G01N 21/78 (2006.01); G01N 33/52 (2006.01); G01N 31/22 (2006.01); B01L 3/00 (2006.01); G01N 30/88 (2006.01); G01N 33/18 (2006.01);
U.S. Cl.
CPC ...
A61L 15/56 (2013.01); G01N 33/50 (2013.01); G01N 21/78 (2013.01); G01N 33/52 (2013.01); G01N 33/525 (2013.01); B01L 2300/0816 (2013.01); G01N 31/22 (2013.01); G01N 31/222 (2013.01); B01L 3/5023 (2013.01); G01N 30/88 (2013.01); G01N 33/18 (2013.01);
Abstract

A wetness indicator material may be used on a substrate to form a wetness sensor. The sensor may show either the presence or absence of an aqueous-based fluid or water-containing medium, such as vaginal fluid or urine in a personal hygiene article. The wetness sensor may be incorporated into the article. The wetness indicator material includes a standard colorant that does not change color when wetted. The standard colorant increases the range of hues exhibited by the wetness indicator material.


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