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:
Aug. 12, 1997
Filed:
Aug. 14, 1995
Patrick A Tresco, Salt Lake City, UT (US);
John F Mills, Wakefield, RI (US);
Brown University Research Foundation, Providence, RI (US);
Abstract
A method for encapsulating biological substances in biocompatible microcapsules is disclosed, the method comprising: (a) maintaining a coating-forming liquid film sheet transverse to a vertical plane, said sheet comprising an organic polymerizable monomer liquid, (b) causing droplets comprising biological substances in an aqueous medium to fall downwardly through said liquid film sheet to form microcapsules comprising cores of said droplets coated by said film, (c) permitting said microcapsules to fall downwardly from said liquid film sheet, and (d) polymerizing said liquid film coatings during descent of said microcapsules below said sheet to form a permeable polymer coating of a sufficient structural integrity so that said microcapsules are self-supporting.