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. 02, 1984
Filed:
May. 16, 1983
Applicant:
Inventors:
John L Haslam, Lawrence, KS (US);
Takeru Higuchi, Lawrence, KS (US);
Arthur R Mlodozeniec, Lawrence, KS (US);
Assignee:
Merck & Co., Inc., Rahway, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ; A61K / ; A61K / ; A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424 78 ; 424 85 ; 424 94 ; 424114 ; 424116 ; 424177 ; 424180 ; 424181 ; 424209 ; 424211 ; 424220 ; 424221 ; 424224 ; 424230 ; 424238 ; 424243 ; 424246 ; 42424851 ; 424251 ; 424253 ; 424254 ; 424256 ; 424258 ; 424263 ; 424265 ; 424267 ; 424270 ; 424271 ; 4242 / ; 4242 / ; 424274 ; 424275 ; 424283 ; 424285 ; 424300 ; 424309 ; 424311 ; 424313 ; 424317 ; 424321 ; 424322 ; 424324 ; 424326 ; 424330 ; 424343 ;
Abstract
This invention describes the application of selected polymers as novel drug delivery systems which use the body temperature and pH to induce a liquid to gel transition of the polymer which contains a drug or therapeutic agent therein. The goal of such a delivery system is to achieve a greater degree of bioavailability or sustained concentration of a drug.