• vcard
D 312.463.6352
F 312.819.1910
  • Education
    • J.D., Illinois Institute of Technology, Chicago-Kent College of Law, 1993
    • Ph.D., Medical College of Wisconsin, 1979, Microbiology
    • B.S., University of Arizona, 1974
  • Bar Jurisdictions
    • Admitted to practice before the United States Patent and Trademark Office
    • Illinois
  • Court Admissions
    • State of Illinois
    • U.S. Court of Appeals, Federal Circuit
    • U.S. District Court, Northern District of Illinois
As a lawyer, litigator, and microbiologist, David Clough, Ph.D. focuses his practice on protecting worldwide intellectual property rights on behalf of biotechnology and pharmaceutical companies. David also collaborates with clients on designing and implementing global IP strategies. Businesses frequently turn to him for IP due diligence analysis in multibillion-dollar acquisitions. David represents clients before courts and administrative agencies and in private mediation and arbitration. He also guides clients through re-examination proceedings and European oppositions.

Tapping both his legal and scientific backgrounds, David has experience prosecuting applications, rendering opinions, and representing clients in administrative and regulatory proceedings on patents in the medical arena. These include:
  • Gene therapy
  • Genetic engineering of viruses
  • Cloning and expression of novel proteins
  • Nucleic acid diagnostics and sequencing
  • Transgenic animals
  • Immunotherapy
  • Reproductive technologies
  • Genetic engineering of antibodies
  • Screening methods for identification of drug candidates
  • Novel drug formulations and delivery systems
  • Cancer therapies, including oncolytic viruses and hormone therapies
  • Treatment of gynecologic disorders
  • Food chemistry
  • Steroid chemistry
  • Genetically engineered plants
  • Methods and compositions for treating neurological diseases
  • Medical devices
David’s background also informs his litigation, mediation, and arbitration practice. Many of his cases involved DNA fingerprinting probes, genetic engineering of antibodies, diagnostic DNA probes, and recombinant proteins, as well as trade secret violations, Lanham Act violations, inventorship disputes, and license disputes.
  • Prosecuted a urologist and national media personality in an inventorship dispute on behalf of a development stage biopharmaceutical company focused on the treatment of reproductive system disorders regarding a drug designed to treat male secondary hypogonadism. Won summary judgement in District Court. Case settled just three days after oral arguments during the Federal Circuit appeal.
  • Represented a private Ivy League research university and a multinational pharmaceutical company with revenue of more than $45 billion in 2016 against a major hospital and one of their partner biopharmaceutical companies in an Eastern District of Pennsylvania case regarding a new technology for the treatment of leukemia. Achieved settlement on behalf of client.
  • Prosecuted an international life sciences company that now has more than 90,000 employees. Defendant was licensed to use client’s patented technology in order to develop an antibody to a protein thought to play a large part in rheumatoid arthritis. The case centered around the amount of royalties payable to client in relation of the defendant’s sale of a block buster biologic drug, which brought in more than $16 billion in revenue in 2016. Judge ruled in favor of client, who was awarded the requested royalties based on the commercial context of contracts instead of the technical language used to outline ownership and roles of various parties, including client’s third party patents. The appeal also settled on favorable terms for client.