Eric R. Hunt


Eric R. Hunt is a partner at Rakoczy Molino Mazzochi Siwik LLP.

Mr. Hunt has substantial experience in complex litigation before federal district courts involving a wide range of chemical, biologic, pharmaceutical and scientific technologies, with particular emphasis on patent infringement suits involving prescription pharmaceutical drugs, including under the Biologics Price Competition and Innovation Act (BPCIA).Heis also active in the firm’s regulatory counseling and litigation practice, advising clients concerning statutory and regulatory issues arising under theFederal Food, Drug, and Cosmetic Act.

Eric is widely regarded as a trusted advisor and strategist to development-stage biopharmaceutical and pharmaceutical companies. LMG Life Sciencesrecognized him as a ‘Life Science Star’ for his representation of Mylan in the company’s first biosimilar litigation.IAM Patent 1000: The World’s Leading Patent Professionalsincluded Eric in its guide for 2020 and 2021, and one client commented that Eric is ‘a go-to for reality checks regardless of the question at hand’ and he ‘provides balanced, real-world counsel.’


Mr. Hunt has extensive patent litigation experience, both at the trial and appellate levels, and is intimately familiar with the statutory and regulatory framework surrounding suits arising under the Hatch-Waxman Amendments to the Federal Food, Drug, and Cosmetic Act and the Biologics Price Competition and Innovation Act (BPCIA). His experience includes all aspects of complex federal litigation, including pre-filing investigations, discovery, motion practice, preliminary injunction proceedings, Markman‘hearings, pre-trial and trial practice, and appellate practice. Mr. Hunt’s broad litigation experience includes a variety of technological fields, including small molecule chemistry, pharmaceutical compounds, pharmaceutical formulations, polymorphic forms of active pharmaceutical ingredients, immediate and extended release dosage forms, and pharmaceutical dosing methods.

Regulatory Counseling & Litigation

Mr. Hunt also has significant involvement in the firm’s regulatory counseling and litigation practice, including statutory and regulatory issues arising under the Hatch-Waxman Act, the Medicare Prescription Drug, Improvement, and Modernization Act (MMA), and the Biologics Price Competition and Innovation Act (BPCIA). He has experience in several regulatory disputes arising under the Administrative Procedure Act, including actions brought against the FDA, both at the trial and appellate levels. Mr. Hunt also has experience with the filing of citizen petitions, related comments, and other administrative submissions with the FDA.

Representative Matters​

  • Lupin Ltd. v. Abbott Labs. (E.D. Va. 2007) (Fed. Cir. 2009) (en banc) (cefdinir) (summary judgment of noninfringement);
  • AstraZeneca Pharms. LP v. Mylan Pharms. Inc. (D. Del. 2010), aff’d (Fed. Cir. 2012) (rosuvastatin) (successful motion to dismiss);
  • Nostrum Pharms., LLC v. U.S. Food and Drug Administration‘(D.N.J. 2011) (carbamazepine) (represented intervenor-defendant Apotex Inc. in connection with denial of motion for preliminary injunction);
  • Hoffmann-La Roche Inc. v. Watson Labs., Inc. (D.N.J. 2012), aff’d (Fed. Cir. 2014) (ibandronate) (successful defense against motion for preliminary injunction; summary judgment of invalidity);
  • Purdue Pharma L.P. v. Mylan Pharms. Inc. (S.D.N.Y. 2013) (Fed. Cir.) (oxycodone);
  • Cephalon, Inc. v. Sun Pharm. Indus., Inc. (D.N.J.) (tiagabine);
  • Forest Labs., Inc. v. Amneal Pharms. LLC et al. (D. Del.) (memantine);
  • Mylan Pharmaceuticals, Inc. v. Genentech, Inc. & City of Hope(PTAB) (trastuzumab);
  • Amgen Inc. v. Mylan Inc. et al.(W.D.Pa.) (pegfilgrastim).

Education Icon Education

DePaul University College of Law

Saint Louis University
(B.S. Biomedical Engineering)

Bar Admissions Icon Bar Admissions


Court Admissions Icon Court Admissions

Federal Circuit Court of Appeals

Third Circuit Court of Appeals

N.D. Illinois