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Generated: April 24, 2017

DrugPatentWatch Database Preview

Details for Patent: 8,895,070

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Which drugs does patent 8,895,070 protect, and when does it expire?


Patent 8,895,070 protects ACANYA and is included in one NDA. There has been one Paragraph IV challenge on Acanya.

This patent has sixteen patent family members in eleven countries.

Summary for Patent: 8,895,070

Title:Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solvent
Abstract: An aqueous formulation for topical application to the skin comprising water, a water-miscible organic solvent, and benzoyl peroxide, wherein the concentration of the organic solvent is sufficient to provide a stable suspension of benzoyl peroxide in the aqueous formulation without the inclusion of a surfactant in the formulation, wherein the ratio of concentrations of water and organic solvent in the formulation is sufficient to maintain the benzoyl peroxide in saturated solubility in the formulation following application to the skin, and wherein the concentration of benzoyl peroxide in the formulation is less than 5.0% and at least 1.0% w/w. The formulation may further contain a chemical compound in addition to benzoyl peroxide that is effective in the treatment of acne. The aqueous formulations of the invention are useful in the treatment of acne and acne rosacea.
Inventor(s): Chang; Yunik (Sonoma, CA), Dow; Gordon J. (Santa Rosa, CA)
Assignee: Dow Pharmaceutical Sciences, Inc. (Petaluma, CA)
Application Number:14/065,186
Patent Claim Types:
see list of patent claims
Use;

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Dow Pharm
ACANYA
benzoyl peroxide; clindamycin phosphate
GEL;TOPICAL050819-001Oct 23, 2008ABRXYesYes8,895,070► Subscribe TREATMENT OF ACNE
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Non-Orange Book Patents for Patent: 8,895,070

For Orange Book-listed patents (shown in the main table above) generic applications must certify that the listed patents are expired, invalid, or will not be infringed by generic entry.

The non-Orange Book patents listed below do not require formal certifications, so they do not automatically impede generic entry. Instead, they represent potential opportunities for branded firms to block generic entry through patent infringment challenges.

Patent No. Title Estimated Patent Expiration
9,078,870Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solvent► Subscribe
9,504,704Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solvent► Subscribe
8,288,434Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solvent► Subscribe
9,561,208Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solvent► Subscribe
8,663,699Topical pharmaceutical formulations containing a low concentration of benzoyl peroxide in suspension in water and a water-miscible organic solvent► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Because of the complexity of determining patent expiration dates it is advisable to have patent counsel verify freedom to operate.

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International Patent Family for Patent: 8,895,070

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada2723029► Subscribe
China102056481► Subscribe
European Patent Office2299810► Subscribe
Japan2011522820► Subscribe
Japan5677693► 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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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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