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Serving leading biopharmaceutical companies globally:

Fish and Richardson
Cantor Fitzgerald
US Department of Justice
Argus Health
Chinese Patent Office

Generated: December 12, 2017

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Details for Patent: 4,529,601

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Summary for Patent: 4,529,601

Title: Local anesthetic mixture for topical application and method for obtaining local anesthesia
Abstract:The present invention relates to pharmacological active preparations, especially local anesthetic preparations and deals with the problem of i a obtaining a solution of a local anesthetic agent in the form of its base, where the concentration is higher than otherwise possible. This problem has been dissolved according to the present invention thereby that one local anesthetic agent in the form of its base and as such having a melting point of 30.degree. to 50.degree. C., preferably prilocaine or tetracaine, is provided with one other local anesthetic agent in the form of its base and as such having a melting point of above 30.degree. C., preferably above 40.degree. C., preferably bensocaine, lidocaine, bupivacaine, mepivacaine, etidocaine or tetracaine which agents when brought and heated together form a homogenous oil having a melting of preferably below 40.degree. C., more preferably below 25.degree. C.
Inventor(s): Broberg; Berndt F. J. (Sodertalje, SE), Evers; Hans C. A. (Sodertalje, SE)
Assignee: Astra Lakemedel Aktiebolag (SE)
Application Number:06/411,624
Patent Claim Types:
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Foreign Priority and PCT Information for Patent: 4,529,601

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Sweden7713618Dec 01, 1977

International Patent Family for Patent: 4,529,601

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina218948► Subscribe
Austria364451► Subscribe
AustriaA859578► Subscribe
Australia4196078► Subscribe
Australia4202878► Subscribe
Australia524406► Subscribe
Australia525417► Subscribe
Canada1113399► Subscribe
Canada1118350► Subscribe
Germany2851369► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving leading biopharmaceutical companies globally:

US Department of Justice
Cantor Fitzgerald

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