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:
Dec. 18, 1984
Filed:
Feb. 17, 1982
Applicant:
Inventors:
Assignee:
N.V. Sopar S.A., Sart-Dames-Avelines, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; A61J / ; A61K / ; B01J / ;
U.S. Cl.
CPC ...
424-71 ; 424-11 ; 424-9 ; 424 19 ; 424 22 ; 424 33 ; 424 88 ; 424 91 ; 424 92 ; 424 93 ; 424 94 ; 42721331 ; 42721334 ; 42840224 ; 436172 ;
Abstract
Biodegradable particles, with a diameter smaller than 500 nanometers, formed by the micellar polymerization of an alkyl-cyano-acrylate where the term 'alkyl' means a lower alkyl radical having 1 to 4 carbon atoms and containing a biologically active substance. Also provided are processes for making pharmaceutical compositions containing the biodegradable particles and using the particles in pharmaceutical and diagnostic applications.