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Last Updated: May 14, 2021

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Details for Patent: 4,758,598

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Summary for Patent: 4,758,598
Title: Solid shaped articles
Abstract:Solid shaped articles, particularly pharmaceutical dosage forms, are prepared by freezing in a mould a composition comprising a predetermined amount of chemical (e.g. pharmaceutical) and a solution of carrier material and then subliming solvent from the frozen composition. The side wall or walls of the mould make an angle with the vertical of at least at the surface of the composition. This enables shaped articles of constant thickness to be produced with minimum sublimation times.
Inventor(s): Gregory; George K. E. (Marlow, GB2)
Assignee: John Wyeth & Brother Ltd. (Maidenhead, GB2)
Application Number:06/850,430
Patent Claim Types:
see list of patent claims
Composition; Formulation;

Drugs Protected by US Patent 4,758,598

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

Foreign Priority and PCT Information for Patent: 4,758,598

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8136360Dec 2, 1981

International Family Members for US Patent 4,758,598

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 229543   Get Started for $10
Austria 27058   Get Started for $10
Australia 554816   Get Started for $10
Australia 9061882   Get Started for $10
Brazil 8206982   Get Started for $10
Canada 1200960   Get Started for $10
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

Boehringer Ingelheim
Harvard Business School
Express Scripts
Johnson and Johnson

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