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Serving leading biopharmaceutical companies globally:

Baxter
Dow
UBS
McKesson
Healthtrust
AstraZeneca
Deloitte
Farmers Insurance
Boehringer Ingelheim
Teva

Generated: February 17, 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

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

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

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8208322Mar 22, 1982

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

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany 3381898 ➤ Sign Up
Denmark 127883 ➤ Sign Up
Denmark 167139 ➤ Sign Up
European Patent Office 0089768 ➤ Sign Up
Finland 81962 ➤ Sign Up
Finland 830890 ➤ Sign Up
Hong Kong 91993 ➤ Sign Up
Japan H0322850 ➤ Sign Up
Japan S58167509 ➤ Sign Up
Norway 163042 ➤ Sign Up
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Moodys
Baxter
Mallinckrodt
Express Scripts
Colorcon
Merck
US Department of Justice
Boehringer Ingelheim
Healthtrust

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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