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:
May. 27, 2014
Filed:
Jun. 25, 2012
John L. Lawless, Pacifica, CA (US);
John L. Lawless, Pacifica, CA (US);
Other;
Abstract
Provided are devices and methods for quantifying a surface's cleanliness relative to a contaminant. Such devices and methods may comprise and/or use a source of interrogating radiation to which the contaminant is responsive, a means for directing the interrogating radiation, a detector, and an analyzer. Radiation emitted from the source is directed by the radiation means toward an article having the surface or comprising a surface cleaner that may hold the contaminant. The detector detects radiation from the article produced in response to the interrogating radiation by the contaminant, e.g., fluorescent or phosphorescent radiation, and generate a corresponding signal that is compared by the analyzer relative to an electronic standard that corresponds to the surface in an acceptably clean state so as to quantify the surface's cleanliness.