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:
Apr. 11, 1989
Filed:
Sep. 17, 1987
Applicant:
Inventors:
Thomas W Leonard, Plattsburgh, NY (US);
Robin P Enever, Rouses Point, NY (US);
Karol K Mikula, Morrisonville, NY (US);
Assignee:
American Home Products Corporation (Del.), New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424486 ; 424449 ; 604307 ;
Abstract
The invention provides a transdermal/transmucosal pharmaceutical delivery system having an improved drug reservoir comprising a thin layer of foamed material made from high molecular weight polyethylene, the foamed material having a void volume of at lesat 20% per unit of surface area and a narrow pore size variation per unit of surface area.