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:
Feb. 10, 1998
Filed:
Nov. 14, 1995
Applicant:
Inventors:
Robert T Zahradnik, Franklin, MA (US);
Sima Sarker, Batesville, AK (US);
Assignee:
Professional Dental Technologies, Inc., Batesville, AK (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424 52 ; 424 40 ; 424673 ;
Abstract
The invention is a high humectant, low water, stannous fluoride containing toothpaste composition which maintains the stability and activity of the stannous fluoride over time, and methods for the preparation thereof. Stannous fluoride combined with from about 70 to about 92% humectant, and water present at less than 10% by weight, provides a stable toothpaste which avoids stannous fluoride degradation with time.