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:
Dec. 06, 1983
Filed:
Apr. 05, 1982
Applicant:
Inventor:
John W Costerton, Calgary, CA;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210764 ; 134 30 ; 165-1 ; 210766 ;
Abstract
A method is provided for removing biofilm from a surface submerged in water. The method includes cooling the biofilm to below the freezing point of water to thereby generate large, sharp-edged ice crystals in the biofilm. The frozen biofilm is then thawed and removed from the surface by, for instance, flowing a liquid across the surface.