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Finding and Evaluating Generic and Branded Drug Market Entry Opportunities

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Last Updated: October 18, 2019

DrugPatentWatch Database Preview

Details for Patent: 8,287,847

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Which drugs does patent 8,287,847 protect, and when does it expire?

Patent 8,287,847 protects VELTASSA and is included in one NDA.

This patent has ninety-one patent family members in seventeen countries.

Summary for Patent: 8,287,847
Title:Ion binding polymers and uses thereof
Abstract: The present invention provides methods and compositions for the treatment of ion imbalances. In particular, the invention provides compositions comprising potassium binding polymers and pharmaceutical compositions thereof. Methods of use of the polymeric and pharmaceutical compositions for therapeutic and/or prophylactic benefits are disclosed herein. Examples of these methods include the treatment of hyperkalemia, such as hyperkalemia caused by renal failure and/or the use of hyperkalemia causing drugs.
Inventor(s): Charmot; Dominique (Campbell, CA), Chang; Han-Ting (Livermore, CA), Liu; Mingjun (Campbell, CA), Klaerner; Gerrit (San Jose, CA)
Assignee: Relypsa, Inc. (Santa Clara, CA)
Application Number:12/055,765
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 8,287,847
Patent Claim Types:
see list of patent claims
Use; Composition; Dosage form;

Drugs Protected by US Patent 8,287,847

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
Relypsa Inc VELTASSA patiromer sorbitex calcium POWDER;ORAL 205739-001 Oct 21, 2015 RX Yes No   Start Trial   Start Trial TREATMENT OF HYPERKALEMIA   Start Trial
Relypsa Inc VELTASSA patiromer sorbitex calcium POWDER;ORAL 205739-002 Oct 21, 2015 RX Yes No   Start Trial   Start Trial TREATMENT OF HYPERKALEMIA   Start Trial
Relypsa Inc VELTASSA patiromer sorbitex calcium POWDER;ORAL 205739-003 Oct 21, 2015 RX Yes Yes   Start Trial   Start Trial TREATMENT OF HYPERKALEMIA   Start 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 8,287,847

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 453383   Start Trial
Austria 460927   Start Trial
Australia 2005228696   Start Trial
Australia 2005231383   Start Trial
Australia 2005231424   Start Trial
Australia 2010214729   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

Johnson and Johnson
McKinsey
Colorcon
Dow
Express Scripts
Merck

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