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Details for Patent: 5,457,895

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Patent 5,457,895 protects MAXALT-MLT and is included in one NDA. There has been one Paragraph IV challenge on Maxalt-MLT.

Protection for MAXALT-MLT has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

Summary for Patent: 5,457,895

Title: Method of identifying freeze-dried dosage forms
Abstract:The invention permits the application of an identifying mark onto a freeze-dried tablet without the need for application of pressure or for printing directly on the tablet. The invention comprises the preparation of a freeze-dried unit that is embossed with an identifying mark such as a manufacturer's logo, medicinal component strength, or other information relating to the unit. The desired identifying mark is first embossed onto the base of a container such as a blister pocket. Liquid suspension is then filled into the container and freeze-dried therein. The resulting freeze-dried unit in the container is thereby embossed with substantial copy of the identifying mark that was embossed on the base of the container. The embossed identifying mark on the base of the container remains thereon as well, providing at reduced manufacturing cost the added ability to learn the identifying mark on the enclosed freeze-dried unit without opening the blister pack.
Inventor(s): Thompson; Andrew R. (Swindon, GB3), Yarwood; Richard J. (Buckland, GB3), Kearney; Patrick (Swindon, GB3)
Assignee: R. P. Scherer Corporation (Troy, MI)
Application Number:08/104,486
Patent Claim Types:
see list of patent claims
Use; Dosage form; Process;
Patent PDF download available with subscription

Glossary
Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Merck
MAXALT-MLT
rizatriptan benzoate
TABLET, ORALLY DISINTEGRATING;ORAL020865Jun 29, 1998RXNo5,457,895*PED<disabled>Y
Merck
MAXALT-MLT
rizatriptan benzoate
TABLET, ORALLY DISINTEGRATING;ORAL020865Jun 29, 1998RXYes5,457,895*PED<disabled>Y
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International Patent Family for Patent: 5,457,895

Country Document Number Publication Date
World Intellectual Property Organization (WIPO)9509608Apr 13, 1995
United States of America6212791Apr 10, 2001
Portugal721325May 31, 2001
JapanH09506268Jun 24, 1997
Japan3155554Apr 09, 2001
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