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:
May. 16, 2000
Filed:
Jan. 20, 1998
Applicant:
Inventor:
Rolf Lohrmann, La Jolla, CA (US);
Assignee:
Molecular Biosystems, Inc., San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424-952 ;
Abstract
The present invention relates to a process for making insoluble gas-filled, pressure-resistant microspheres containing a liquid or solid hydrophobic barrier within the microsphere shell, and products of this process. This barrier serves to decrease the rate of gas exchange between the microsphere and the aqueous environment surrounding the microsphere and thus enhances resistance to pressure due to gas exchange.