Method and article for applying and monitoring a surfactant
US7544409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2003 |
| Grant date | Jun 9, 2009 |
| Priority date | — |
| Expiry date | Sep 22, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24884
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to a method and an article for performing the method of monitoring a surfactant. A preferred embodiment of the invention, an article comprises a substrate having an image and a surfactant thereon. The substrate is formed from various known fabrics or materials capable of absorbing and retaining a substantial quantity of the surfactant. During use, as the surfactant is dissipated, the image changes in appearance thereby indicating the quantity of surfactant remaining on the substrate. In a preferred embodiment of the invention, the method and article of the present invention is effective for encouraging and making washing enjoyable for children and includes the use of an epidermal surfactant, such as soap, detergent, or other active ingredient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.