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:
Feb. 13, 2007
Filed:
Feb. 26, 2002
Giovanni Del Re, Monteluco di Roio, IT;
Matteo Putrignano, Monteluco di Roio, IT;
Gabriele Di Giacomo, Monteluco di Roio, IT;
Cesare Di Palma, Monteluco di Roio, IT;
Giovanni Del Re, Monteluco di Roio, IT;
Matteo Putrignano, Monteluco di Roio, IT;
Gabriele Di Giacomo, Monteluco di Roio, IT;
Cesare Di Palma, Monteluco di Roio, IT;
Dompe' pha.r.ma S.p.A., L'Aquila, IT;
Abstract
An apparatus is described for micron and submicron particles formation of a substance using the GAS process, comprising a particles formation vessel () and means for introducing a solution of the substance and a supercritical fluid into the particles formation vessel (), wherein said means comprise a nozzle () having a central orifice () serving to carry a flow of solution, and a plurality of separate outer orifices () serving to carry a flow of pure supercritical fluid or a flow of supercritical fluid mixed with a modifier, such that the solvent is extracted from the solution by the supercritical fluid and precipitation of micron and submicron particles occurs. Also a process is described, carried out with such an apparatus.