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. 04, 1999
Filed:
Jul. 18, 1997
Applicant:
Inventors:
Joseph C Petrille, North Wales, PA (US);
Michael W Werner, Warrington, PA (US);
Assignee:
BetzDearborn Inc., Trevose, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210755 ; 210749 ; 210764 ; 514642 ;
Abstract
Methods for controlling the fouling potential of macroinvertebrates are provided. An effective controlling amount of a polymer comprising a tannin and a cationic monomer is added to an aqueous system suffering from the fouling potential of macroinvertebrates.