U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Bioactive composition

Patent 5455286 Issued on October 3, 1995. Estimated Expiration Date: Icon_subject August 2, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3920436

Inventors

Application

No. 284171 filed on 08/02/1994

US Classes:

523/122, Composition having ingredient providing biocidal or biostatic protection thereto or process of preparing424/403, Insect repellent or mothproofed424/405, Biocides; animal or insect repellents or attractants (e.g., disinfectants, pesticides, etc.)424/407, Containing material to enhance the sticking of the active ingredients424/409, Solid as carrier or diluent424/418, Protein or derivative or polysaccharide or derivative424/465, With claimed perfecting feature in contents (e.g., excipient, lubricant, etc.)424/474, Coated pills or tablets424/477, Containing proteins or derivatives thereof424/478, Gelatin containing424/480, Cellulose or derivative427/2.31, Flexible web, sheet, film, or filament base (e.g., fabric, bandage, suture, transdermal patch, orthopedic cast tape)427/4, PLANT MEMBER OR ANIMAL SPECIMEN COATING427/336, Swelling agent or solvent applied to treat coating427/340, Resin, resin precursor, rubber, or hardenable oil containing coating427/341, Inorganic treating agent514/944GEL

Examiners

Primary: Michl, Paul R.
Assistant: DeWitt, LaVonda R.

Foreign Patent References

  • 0143297 EP 06/25/1985

International Classes

A01N 025/34
A01N 025/00

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 1000 cP to produce a retentive coating at the site of application which provides enhanced bioavailability of the agent.

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