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. 03, 2022
Filed:
Apr. 02, 2018
3m Innovative Properties Company, St. Paul, MN (US);
Sailaja Chandrapati, Woodbury, MN (US);
Alec J. Teagarden, Savage, MN (US);
Haley A. Saddoris, Minneapolis, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
A device for differentially enumerating colonies of coliform andmicroorganisms is provided. The device comprises a water-impermeable first sheet; a water-impermeable second sheet attached to the first sheet; a dry, rehydratable culture medium comprising a lactose-fermentation indicator system, a β-D-glucuronidase indicator system that comprises a plurality of compounds that enhance β-glucuronidase enzyme activity ina redox indicator system and a first cold-water soluble gelling agent adhered to the first sheet, the culture medium disposed in a microbial growth zone; and a second cold-water-soluble gelling agent adhered to the second sheet. The microbial growth zone is disposed between the first sheet and the second sheet. Methods of using the device are also provided.