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:
Nov. 26, 2002
Filed:
Mar. 05, 2002
Applicant:
Inventors:
Craig A. Bonda, Winfield, IL (US);
Urvil B. Shah, Mokena, IL (US);
Robert J. Mcmillin, Oak Lawn, IL (US);
Magda M. Roth, Homewood, IL (US);
Assignee:
The C. P. Hall Company, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 7/42 ; A61K 7/44 ; A61K 7/00 ;
U.S. Cl.
CPC ...
A61K 7/42 ; A61K 7/44 ; A61K 7/00 ;
Abstract
A method of preparing a sunscreen including a solvent system and a filter system, the method including the step of controlling the polarity of the solvent system to control the rate of photodecay of the filter system, as well as sunscreen compositions and compounds for producing sunscreen compositions, are disclosed.