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:
Sep. 26, 2006
Filed:
Aug. 22, 2000
Manja Ahola, Piikkiö, FI;
Eija Säilynoja, Turku, FI;
Jukka Salonen, Turku, FI;
Risto Penttinen, Turku, FI;
Antti Yli-urpo, Littoinen, FI;
Manja Ahola, Piikkiö, FI;
Eija Säilynoja, Turku, FI;
Jukka Salonen, Turku, FI;
Risto Penttinen, Turku, FI;
Antti Yli-Urpo, Littoinen, FI;
DelSiTech Oy, Turku, FI;
Abstract
A composition for controlled release of a biologically active agent from a carrier. The biologically active agent is heparin or a related biologically active acidic polysaccharide and the carrier is a sol-gel derived silica xerogel. The xerogel is derived from a tetraalkoxysilane such as tetrethoxysilane (TEOS) and part of the tetraalkoxysilane is replaced by an organomodified alkoxysilane, preferably an akylsubsitituted alkoxysilane. The invention also includes a method for the preparation of this composition.