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:
Jan. 06, 1998
Filed:
Oct. 08, 1996
Applicant:
Inventors:
Assignee:
NanoSystems L.L.C., King of Prussia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
424489 ; 424-9411 ; 424-94 ; 424495 ; 424499 ; 514718 ; 514975 ;
Abstract
There is disclosed a pharmaceutical composition which gels at physiological temperature. The composition is comprised of a block copolymer containing one or more polyoxyethylene blocks and one or more polyoxy (higher alkylene) blocks wherein at least some of the blocks are linked together by a linking group characterised in that the linking group is an oxymethylene group, and a therapeutic agent. The therapeutic agent is present as (i) nanoparticles of the therapeutic agent having the block copolymer adsorbed on the surface thereof, (ii) a suspension in a solution of the block copolymer, or (iii) as an aqueous solution in a solution of the block copolymer.