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. 01, 1988
Filed:
Mar. 21, 1986
Applicant:
Inventors:
Suong-Hyu Hyon, Uji, JP;
Yoshito Ikada, Uji, JP;
Assignee:
Biomaterials Universe, Inc., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61L / ;
U.S. Cl.
CPC ...
424486 ; 424485 ;
Abstract
Transdermal dosage compositions are prepared from hydrated poly(vinyl alcohol) gels and pharmacologically active substances without any chemicals such as crosslinking agents and catalysts. Heating process is not involved in the gel preparation. High water contents of the gels enable the stratum corneum to be swollen, resulting in high permeation of drugs through the skin.