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:
Jun. 17, 2003
Filed:
Jun. 10, 2002
Applicant:
Inventors:
Wilson K. Whitekettle, Jamison, PA (US);
Gloria J. Tafel, Doylestown, PA (US);
Assignee:
GE Betz, Inc., Trevose, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 3/166 ;
U.S. Cl.
CPC ...
A61K 3/166 ;
Abstract
A method of controlling protozoa trophozoite and cysts is disclosed, comprising administering a phosphonium salt of the formula: (R ) P R .X , wherein R is an alkyl group having from 1-8 carbons and R is a chain substituent having 6-20 carbons, to aqueous systems harboring protozoa trophozoites and cysts. Addition of such phosphonium salts to aqueous systems was found to be effective at killing both the protozoa trophozoites and cysts. By effectively killing both the protozoa trophozoites and cysts, organism such as Legionella cells harbored in both the trophozoites and cysts are killed.