Patent Valuation, Monetization and Investments

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Markman Advisors Patent Blog

by Zachary Silbersher

Posts tagged $NVS
District Court Decision Teaches Caution When Construing Claims to Encompass After-Arising Technology

Novartis is currently involved in a multi-district patent litigation campaign to block generic entrants for Entresto®, which is Novartis’ blockbuster heart medication. In the fall of 2022, Novartis went to trial on the validity of one of the asserted patents, U.S. Patent No. 8,101,659(“the ‘659 patent”). On July 7, 2023, the district court invalidated the patent for lack of written description despite rejecting an enablement defense based upon the same evidence. The district court’s decision highlights a clear tension between claim construction and enablement that, if left to stand, could permit pharmaceutical companies to block lower-cost generic medications with patents they did not actually invent. Read the full post at IPWatchddog.

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Why was the Humira “patent thicket” antitrust case against AbbVie dismissed?

When does a pile of sand become a heap? When is a portfolio of patents too many patents? Can using too many patents to compel generics to take a later entry date turn into monopolistic conduct? These questions lurk the heart of the antitrust litigation brought by buyers of the blockbuster drug, Humira®, against its manufacturer, AbbVie ($ABBV). The case is currently pending within the Northern District of Illinois (In Re: Humira (Adalimumab) Antitrust Litigation, No. 19-cv-1873 (N.D. Ill.)). We previously blogged about related allegations before the case was filed when Boehringer Ingelheim raised them within its biosimilar litigation against AbbVie. On June 8, 2020, the Illinois federal court dismissed the antitrust action pursuant to AbbVie’s motion to dismiss. What are the takeaways from the case?

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Can Novartis’ new chicken-pox patent protect Gilenya from generic competition?

We recently blogged about the pending appeal of an IPR that upheld the patentability of the ‘405 patent covering Gilenya®. If Novartis ($NVS) prevails in that appeal, then that could potentially secure another seven years of exclusivity for Gilenya® without generic competition. Novartis, however, has a back-up plan. The Patent Office recently granted Novartis an additional patent (U.S. Patent No. 10,543,179) covering Gilenya®, which will also not expire until December 2027. Novartis has already commenced Hatch-Waxman suits against numerous generics to enforce the ‘179 patent. How strong is this patent?

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Can Novartis defend the validity of the ‘405 patent covering Gilenya?

Novartis’ ($NVS) blockbuster drug, Gilenya®, is facing an onslaught of prospective generic competition.  In response, Novartis has wielded one of its patents – the ‘405 patent.  The patent survived an IPR challenge, and that decision has been appealed to the Federal Circuit.  The appeal is fully briefed and heard oral argument earlier this year in January.  If Novartis prevails in the appeal, that means it could potentially exclude generics until the ‘405 patent expires in 2027.  What is the likelihood Novartis will prevail?

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How long can Roche keep back biosimilars for Avastin®, Herceptin® or Rituxan®?

The biosimilars are biting.  And they are biting at three big biologics distributed by Roche through its biotech subsidiary, Genentech.  Roche currently faces pending biosimilar competition against Avastin® (bevacizumab), Roche’s biggest selling cancer drug, Herceptin® (trastuzmab), Roche’s breast-cancer drug, and Rituxan® (rituximab), Roche’s immunotherapy drug.  All three drugs are involved in patent litigations. How long will these cases last? And how long can Roche keep the biosimilars out?

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What is Regeneron’s exposure from Novartis’ patent case against blockbuster Eylea®?

Novartis has filed a patent lawsuit against Regeneron seeking damages for sales of Eylea® and Zaltrap®.  On March 19, 2018, Novartis sued Regeneron in the Southern District of New York, White Plains Division, for infringing U.S. Patent No. 5,688,688.  The ‘688 patent claims gene expression constructs for the expression of polypeptides in mammalian cells.  How strong is Novartis’ case, and what is Regeneron’s exposure?

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