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. 07, 1999
Filed:
Jan. 03, 1995
Applicant:
Inventors:
Robert P Lenk, Lambertville, NJ (US);
Anthony G Durning, Yardley, PA (US);
Robert J Klimchak, Flemington, NJ (US);
Joel Portnoff, Richboro, PA (US);
Michelle L Tomsho, Levittown, PA (US);
Assignee:
The Liposome Company, Inc., Princeton, NJ (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
424489 ; 264-41 ; 264-43 ; 424450 ; 424502 ; 4284022 ; 436829 ; 514 78 ;
Abstract
Tangential flow filtration is used in the size separation of particles, such as liposomes and lipid particles. These particles may be passed through a tangential flow filtration device of any pore size desired. Tangential flow filter systems of various pore sizes may be used sequentially to obtain particles such as lipid particles or liposomes having a defined size range.