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Serving hundreds of leading biopharmaceutical companies globally:

Express Scripts
Argus Health
Farmers Insurance
Cerilliant
UBS
Federal Trade Commission
Cipla
Fish and Richardson
US Army

Generated: April 25, 2018

DrugPatentWatch Database Preview

Details for Patent: 3,922,305

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Summary for Patent: 3,922,305
Title: Chemical compounds
Abstract:1. A compound selected from the group consisting of: ##SPC1## And acid addition salts thereof wherein R is selected from the group consisting of hydrogen, alkyl having up to 6 carbon atoms, benzyl, or cycloalkyl having up to 8 carbon atoms; Y is selected from the group consisting of hydrogen, chloro, or bromo; and X and X' are selected from the group consisting of hydrogen, chloro, or bromo. 2. A compound selected from the group consisting of: ##SPC2## And acid addition salts thereof wherein R is selected from the group consisting of hydrogen and alkyl having up to 6 carbon atoms.
Inventor(s): Engelhardt; Edward L. (Gwynedd Valley, PA)
Assignee: Merck & Co., Inc. (Rahway, NJ)
Application Number:04/297,710
Patent Claim Types:
see list of patent claims
Compound;

Drugs Protected by US Patent 3,922,305

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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International Patents Family Members for US Patent 3,922,305

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Belgium 650988 ➤ Try a Free Trial
Brazil 6461109 ➤ Try a Free Trial
Switzerland 494730 ➤ Try a Free Trial
Germany 1468341 ➤ 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:

Cantor Fitzgerald
AstraZeneca
Cipla
Covington
Cerilliant
Federal Trade Commission
US Army
Mallinckrodt
Baxter

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