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Serving leading biopharmaceutical companies globally:

Farmers Insurance
US Army
Harvard Business School

Generated: December 12, 2017

DrugPatentWatch Database Preview

Details for Patent: 8,623,920

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Which drugs does patent 8,623,920 protect, and when does it expire?

Patent 8,623,920 protects ZIPSOR and is included in one NDA. There has been one Paragraph IV challenge on Zipsor.

Summary for Patent: 8,623,920

Title:Method of treating post-surgical acute pain
Abstract: A method is provided for treating pain in patients recovering from post-surgical trauma by administering between about 13 to about 30 mg of diclofenac potassium in a liquid dispersible formulation over a period of at least 24 hours, wherein the daily total amount of diclofenac potassium administered is less than or equal to about 100 mg. The method is particularly useful in treating acute pain in bunionectomy patients.
Inventor(s): Kowalski; Mark M. (Winchester, MA), Young; James L. (Valley Park, MO), Moore; Keith A. (Loveland, OH)
Assignee: Depomed, Inc. (Newark, CA)
Application Number:13/205,033
Patent Claim Types:
see list of patent claims
Use; Formulation; Dosage form;

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Patent Submitted Product Substance Delist Req. Patented / Exclusive Use
Depomed IncZIPSORdiclofenac potassiumCAPSULE;ORAL022202-001Jun 16, 2009ABRXYesYes► Subscribe► Subscribe► SubscribeDICLOFENAC POTASSIUM FOR RELIEF OF MILD TO MODERATE ACUTE PAIN
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Non-Orange Book Patents for Patent: 8,623,920

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
7,662,858Method of treating post-surgical acute pain► Subscribe
8,110,606Method of treating post-surgical acute pain► Subscribe
9,561,200Method of treating post-surgical acute pain► Subscribe
7,939,518Method of treating post-surgical acute pain► Subscribe
7,884,095Method of treating post-surgical acute pain► 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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Serving leading biopharmaceutical companies globally:

Cantor Fitzgerald
Daiichi Sankyo
Johnson and Johnson
Harvard Business School

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