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Generated: April 24, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,680,312

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Summary for Patent: 4,680,312

Title:	Stable prostaglandin E gels utilizing colloidal silicon dioxide as a gel-forming agent
Abstract:	The present invention provides an improved class of stable gels of prostaglandin E compounds prepared from solutions of prostaglandin E compounds in a pharmaceutically acceptable, stabilizing organic solvent, e.g., triacetin, gelled by the addition of colloidal silicon dioxide.
Inventor(s):	Johnson; Brian S. (Crawley, GB)
Assignee:	The Upjohn Company (Kalamazoo, MI)
Application Number:	06/674,357
Patent Claim Types: see list of patent claims	Dosage form;

Drugs Protected by US Patent 4,680,312

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

Foreign Priority and PCT Information for Patent: 4,680,312

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
United Kingdom	8208322	Mar 22, 1982

International Patents Family Members for US Patent 4,680,312

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Country	Document Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Germany	3381898	➤ Sign Up
Finland	81962	➤ Sign Up
Denmark	127883	➤ Sign Up
Denmark	167139	➤ Sign Up
Country	Document Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration

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