Lipitor patent reissue rejected, for now

Share this article:
Pfizer will look to re-submit corrections to its US Lipitor patent after the US Patent and Trademark Office rebuffed an initial attempt. Reissuing a corrected patent, as Pfizer is seeking to do, would help the company retain US marketing exclusivity on atorvastatin until 2011.

Last year the patent term on the anti-cholesterol med was shortened by a year, from June 2011 to March 2010, when a federal appeals court deemed one Lipitor patent invalid, reversing a lower court's decision. Generic manufacturer Ranbaxy had challenged the patent.

At the time, Pfizer said that the decision “turned on a technical defect” and that it planned to apply to the PTO to correct it.

As Pfizer spokesman Bryant Haskins told The Wall Street Journal , “An initial rejection is not uncommon in reissue application proceedings.” He went on to say that once the company receives a letter from the PTO explaining its decision, it will review and respond appropriately to address any issues raised.

Share this article:

Email Newsletters

More in News

Doctors want to know how CMS plans to display Sunshine payment data

Doctors want to know how CMS plans to ...

Physician and industry trade groups are asking CMS to explain how context will be provided to the general public around the dollar sums drugmakers ascribe to doctors for things like ...

Pfizer Q2 sales slip, but still beat expectations

Pfizer Q2 sales slip, but still beat expectations

Patent losses and lost co-promotion agreements put a dent in sales.

Lack of marketing partner delays Afrezza launch

Lack of marketing partner delays Afrezza launch

Afrezza was heralded as one of the most innovative diabetes products of the last decade. So, why hasn't MannKind set a firm launch date for the product?