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Serving leading biopharmaceutical companies globally:

Accenture
US Army
Farmers Insurance
Harvard Business School
Cantor Fitzgerald
Covington
UBS
Daiichi Sankyo
QuintilesIMS
Argus Health

Generated: February 22, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,955,109

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Summary for Patent: 5,955,109
Title: Methods and compositions for topical delivery of retinoic acid
Abstract:Retinoic acid compositions intended for topical application are incorporated in novel formulations in which they are retained as impregnants inside the pores of porous solid particles or microspheres. The pores form a continuous network open to the exterior of the particles, permitting outward diffusion of the retinoic acid impregnant at a controlled rate depending on the pore size. The impregnated particles are prepared by impregnation of preformed particles with the retinoic acid.
Inventor(s): Won; Richard (Palo Alto, CA), Katz; Martin A. (Menlo Park, CA), Cheng; Chung H. (San Jose, CA), Nacht; Sergio (Los Altos, CA)
Assignee: Advanced Polymer Systems, Inc. (Redwood City, CA)
Application Number:08/079,220
Patent Claim Types:
see list of patent claims
Composition; Delivery; Use;

Drugs Protected by US Patent 5,955,109

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 5,955,109

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2164088 ➤ Try a Free Trial
European Patent Office 0277211 ➤ Try a Free Trial
Australia 7858087 ➤ Try a Free Trial
Canada 1303991 ➤ Try a Free Trial
Canada 1310583 ➤ Try a Free Trial
Germany 3789956 ➤ Try a Free Trial
Germany 3880593 ➤ Try a Free Trial
Australia 613398 ➤ Try a Free Trial
European Patent Office 0306236 ➤ Try a Free Trial
Australia 603379 ➤ 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:

Moodys
Baxter
Farmers Insurance
Queensland Health
Julphar
Express Scripts
Covington
McKinsey
Boehringer Ingelheim

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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