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:
Sep. 09, 1986
Filed:
Jan. 25, 1985
Applicant:
Inventors:
Donald Durham, Germantown, MD (US);
J Leslie Glick, Potomac, MD (US);
Douglas W Fodge, Rockville, MD (US);
Wayne E Swann, Columbia, MD (US);
Assignee:
Genex Corporation, Rockville, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D / ; D06M / ;
U.S. Cl.
CPC ...
25217412 ; 25217417 ; 252173 ; 252D / ; 435264 ;
Abstract
Drainage pipes, such as toilet drains, which are clogged with cellulosic paper products, are unclogged by contacting the paper with a cellulase enzyme in the form of an aqueous solution, a viscous fluid comprising the enzyme dispersed in a non-cellulosic water-soluble natural or synthetic gum, or solid particles comprising the enzyme dispersed in a water-soluble polymer.