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:
Apr. 28, 2009
Filed:
May. 10, 2004
Bernard A. Gonzalez, St. Paul, MN (US);
Kevin D. Landgrebe, Woodbury, MN (US);
Kimberley D. Klepzig, St. Paul, MN (US);
Sailaja Chandrapati, Woodbury, MN (US);
Susannah C. Clear, Hastings, MN (US);
Bernard A. Gonzalez, St. Paul, MN (US);
Kevin D. Landgrebe, Woodbury, MN (US);
Kimberley D. Klepzig, St. Paul, MN (US);
Sailaja Chandrapati, Woodbury, MN (US);
Susannah C. Clear, Hastings, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A biological soil detector is provided, the detector including: a solid support member; a specific indicator immobilized on the solid support member; and the solid support member and specific indicator positioned to contact liquid that has been used to contact a surface. The invention also provides a method for detecting biological soil on a surface, the method including the following steps: contacting the surface with a liquid; after the liquid has contacted the surface, contacting the liquid with the solid support member and the specific indicator; and inspecting the solid support member to determine whether the specific indicator has interacted with biological soil.