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Serving leading biopharmaceutical companies globally:

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Generated: February 24, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,297,351

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Summary for Patent: 4,297,351
Title: Method of manufacture and use of improved 2.beta., 16.beta.-piperidino androstanes
Abstract:New and pharmacologically useful pharmaceutically acceptable acid addition salts are disclosed for the 16.beta.-monoquaternary ammonium derivatives of either the 2.beta., 16.beta.-bis-piperdino-3.alpha., 17.beta.-dihydroxy-5.alpha.-androstane 3.alpha., 17.beta.-di-lower aliphatic esters or the 2.beta., 16.beta.-bis-piperidino-3.alpha.-hydroxy-5.alpha.-androstane-3.alpha.-lowe r aliphatic esters, which salts are surprisingly relatively stable in aqueous solutions, so that they provide stable aqueous injection preparations.
Inventor(s): Carlyle; Ian C. (Hamilton, GB6), Sleigh; Thomas (Wishaw, GB6), Savage; David S. (Glasgow, GB6)
Assignee: Akzona Incorporated (Asheville, NC)
Application Number:06/194,942
Patent Claim Types:
see list of patent claims
Use;

Drugs Protected by US Patent 4,297,351

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: 4,297,351

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom35667/78Sep 5, 1978

International Patents Family Members for US Patent 4,297,351

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 228728 ➤ Try a Free Trial
Austria 921 ➤ Try a Free Trial
Australia 5034879 ➤ Try a Free Trial
Australia 526270 ➤ Try a Free Trial
Canada 1134813 ➤ Try a Free Trial
Germany 2962627 ➤ Try a Free Trial
Denmark 159119 ➤ Try a Free Trial
Denmark 361779 ➤ Try a Free Trial
European Patent Office 0008824 ➤ Try a Free Trial
Spain 483894 ➤ Try a Free Trial
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Colorcon
Healthtrust
Cipla
US Department of Justice
Fuji
Citi
Argus Health
Harvard Business School
Daiichi Sankyo

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