Preston K. Ratliff IIPreston K.Ratliff II
Partner, Intellectual Property
Preston K. Ratliff II is a partner in the firm’s Litigation Department in New York. Preston focuses his practice on complex, high-stakes litigation with an emphasis on patent litigation in the biotechnology, pharmaceutical, chemical, agricultural and renewable fuel sectors. He has successfully represented major and emerging companies both pre-trial and at trial. Chambers USA notes that Preston is “really outstanding and excels at all aspects of litigation. What stands out is that he is a brilliant strategist who sees the big picture and can anticipate risks that aren’t always necessarily apparent … he is a very calming and unflappable presence even in the most difficult and stressful situations.”
Seagen Inc. v. Daiichi Sankyo Company Limited. Lead counsel in a hotly contested, multi-billion-dollar breach of contract intellectual property biotechnology dispute involving antibody-drug conjugates (“ADCs”) for the treatment of various cancers. Preston, along with his team, obtained a complete victory dismissing the opposition’s claims as both substantively meritless and time-barred. This win was reported to be among the largest disputes ever handled by the International Centre for Dispute Resolution, which is the American Arbitration Association’s forum for global conflict resolution.
Sumitomo Dainippon Pharma et al. v. Emcure Pharmaceuticals et al. Lead counsel that locked in full patent protection and revenues arising from Sumitomo Dainippon Pharma’s chemical compound patent for its billion-dollar-plus-per-year schizophrenia and bipolar drug, Latuda®. Specifically, Preston obtained a Federal Circuit decision that affirmed a District Court’s November 2016 claim construction ruling and a February 2017 judgment of infringement against three generic drug manufacturers. Taken together, these dual victories secured patent protection for Latuda® while blocking more than a dozen generic drug manufacturers, including industry giant Teva Pharmaceuticals, from launching competing products.
- Intellectual Property: Patent (New York)
Chambers USA
IAM Global Leader
Member
Intellectual Property Owners Association
Member
New Jersey Intellectual Property Law Association