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:
Jun. 22, 1993
Filed:
Jun. 27, 1991
Gordon L Amidon, Ann Arbor, MI (US);
Ramachandran Chandrasekharan, Ypsilanti, MI (US);
Arthur H Goldberg, Montclair, NJ (US);
The Regents of the University of Michigan, Ann Arbor, MI (US);
Abstract
An improved bioactive agent delivery composition and method of application are described. The composition comprises a bioactive agent, a hydrophilic polymer in an incompletely hydrated state and a substantially water-miscible solvent system. The agent and polymer are essentially dissolved in the solvent system to form a sprayable composition having a viscosity of less than 350 cP. Upon dilution with water, the viscosity of the composition increases to in excess of 1,000 cP to produce a retentive coating at the site of application which provides enhanced bioavailability of the agent.