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Last Updated: March 19, 2024

Details for Patent: 6,217,909


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Summary for Patent: 6,217,909
Title: Pharmaceutical excipient having improved compressibility
Abstract:A microcrystalline cellulose-based excipient having improved compressibility, whether utilized in direct compression, dry granulation or wet granulation formulations, is disclosed. The excipient is an agglomerate of microcrystalline cellulose particles and from about 0.1% to about 20% silicon dioxide particles, by weight of the microcrystalline cellulose, wherein the microcrystalline cellulose and silicon dioxide are in intimate association with each other. The silicon dioxide utilized in the novel excipient has a particle size from about 1 nanometer to about 100 microns. Most preferably, the silicon dioxide is a grade of colloidal silicon dioxide.
Inventor(s): Sherwood; Bob E. (Amenia, NY), Staniforth; John H. (Bath, GB), Hunter; Edward A. (Glenham, NY)
Assignee: Edward Mendell Co., Inc. (Patterson, NY)
Application Number:09/438,646
Patent Claim Types:
see list of patent claims
Composition;

Drugs Protected by US Patent 6,217,909

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 6,217,909

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 239450 ⤷  Try a Trial
Austria 441403 ⤷  Try a Trial
Austria 445391 ⤷  Try a Trial
Australia 4759896 ⤷  Try a Trial
Australia 5019996 ⤷  Try a Trial
Australia 5830399 ⤷  Try a Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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