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:
Oct. 03, 1995
Filed:
Apr. 01, 1993
Thomas J Pennaz, Brooklyn Park, MN (US);
Deluxe Corporation, Shoreview, MN (US);
Abstract
A method of cleaning waste water and removing contaminants therefrom with respect to compositions exhibiting water solubility behavior which is pH dependent. The method includes the preliminary step of applying the composition at a pH at which the composition is water insoluble, then removing excess composition from application equipment with a wash solution having a pH at which the composition is water soluble or washable, changing the pH of the wash solution to a pH at which the composition is water insoluble to thereby precipitate the composition and removing the composition by filtration or other separation techniques. The invention also relates to a shop towel clean up method.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile