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:
Nov. 22, 1994
Filed:
Jun. 03, 1992
Applicant:
Inventors:
Gideon Eden, Ann Arbor, MI (US);
Ruth Eden, Ann Arbor, MI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12Q / ; C12M / ;
U.S. Cl.
CPC ...
435 34 ; 435291 ; 435296 ; 435299 ; 435808 ; 435311 ;
Abstract
A new device and method to detect the presence of live microorganisms are described. The device employs a liquid phase which supports microbial growth by utilizing appropriate media. A secondary phase which consists of semi-liquid material forms a barrier layer through which only small particles can diffuse and which prevent the presence of any large particles. Noise-free optical measurements are carried out at the barrier layer which are indicative of metabolic changes associated with microbial growth.