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Last Updated: January 28, 2022

DrugPatentWatch Database Preview

Details for Patent: 8,288,434


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Which drugs does patent 8,288,434 protect, and when does it expire?

Patent 8,288,434 protects ACANYA and ONEXTON and is included in one NDA.

This patent has twenty patent family members in fourteen countries.

Summary for Patent: 8,288,434
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:12/455,525
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,288,434
Patent Claim Types:
see list of patent claims
Formulation; Use; Compound;

Drugs Protected by US Patent 8,288,434

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Bausch ACANYA benzoyl peroxide; clindamycin phosphate GEL;TOPICAL 050819-001 Oct 23, 2008 AB RX Yes Yes ⤷  Sign up for a Free Trial ⤷  Sign up for a Free Trial Y TREATMENT OF ACNE ⤷  Sign up for a Free Trial
Bausch ONEXTON benzoyl peroxide; clindamycin phosphate GEL;TOPICAL 050819-002 Nov 24, 2014 RX Yes Yes ⤷  Sign up for a Free Trial ⤷  Sign up for a Free Trial Y TOPICAL TREATMENT OF ACNE VULGARIS ⤷  Sign up for a Free Trial
Bausch ONEXTON benzoyl peroxide; clindamycin phosphate GEL;TOPICAL 050819-002 Nov 24, 2014 RX Yes Yes ⤷  Sign up for a Free Trial ⤷  Sign up for a Free Trial Y TREATMENT OF ACNE ⤷  Sign up for a Free Trial
Bausch ONEXTON benzoyl peroxide; clindamycin phosphate GEL;TOPICAL 050819-002 Nov 24, 2014 RX Yes Yes ⤷  Sign up for a Free Trial ⤷  Sign up for a Free Trial Y TREATMENT OF ACNE VULGARIS ⤷  Sign up for a Free Trial
Bausch ONEXTON benzoyl peroxide; clindamycin phosphate GEL;TOPICAL 050819-002 Nov 24, 2014 RX Yes Yes ⤷  Sign up for a Free Trial ⤷  Sign up for a Free Trial Y TOPICAL TREATMENT OF ACNE VULGARIS IN PATIENTS 12 YEARS OR OLDER ⤷  Sign up for a Free Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

International Family Members for US Patent 8,288,434

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 2009255679 ⤷  Sign up for a Free Trial
Brazil PI0913326 ⤷  Sign up for a Free Trial
Canada 2723029 ⤷  Sign up for a Free Trial
China 102056481 ⤷  Sign up for a Free Trial
European Patent Office 2299810 ⤷  Sign up for a Free Trial
Spain 2773931 ⤷  Sign up for a Free Trial
Croatia P20200450 ⤷  Sign up for a Free Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

Harvard Business School
Mallinckrodt
Express Scripts
Dow
Boehringer Ingelheim
Johnson and Johnson

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