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:
Jan. 24, 1995
Filed:
Jun. 29, 1993
Robert N Boyes, St. Albans, GB;
Thomas R Tice, Birmingham, AL (US);
Richard M Gilley, Birmingham, AL (US);
Kenneth L Pledger, Huntsville, AL (US);
Innovata Biomed Limited, Edinburgh, GB;
Abstract
Pharmaceutical formulations comprise (i) microcapsules which consist essentially of a biocompatible polymeric wall material encapsulating a drug, and (ii) a lipid soluble surfactant which is mixed with the microcapsules or is incorporated within or coats the wall material of the microcapsules. Such formulations may be presented as an aerosol or dry powder for inhalation. Microcapsules with surfactant incorporated in the wall material may be suspended in a pharmaceutically acceptable water-immiscible oil and the resulting suspension emulsified in an aqueous medium to obtain a formulation for oral administration.