David S. Harper, Ph.D. - Lawyer in Chicago, IL

David S.Harper is a partner at McDonnell Boehnen Hulbert & Berghoff LLP. Dr. Harper has over 24 years of experience in the field of intellectual property law.  His practice consists of all stages of U.S. and foreign patent and trademark prosecution, intellectual property portfolio development, licensing and other contractual work, counseling, due diligence analysis, infringement analysis, and invalidation analysis. He has particular technical expertise in the fields of biology, pharmaceuticals, diagnostics, biochemistry, cell biology, immunology, molecular biology, and medical devices. He has developed an intellectual property portfolio for diverse clients from start-ups to large corporations, universities, and other non-profit institutions, many of which are based in his clients.