David M. Marks is president and principal consultant with DME engineering. He has over 25 years of experience in the design and delivery of advanced technology process facilities, primarily in the biotechnology and pharmaceutical industries. He is a subject matter expert in bioprocess systems, aseptic processing, equipment design, cleaning, sterilization, single use technology, bioburden control, and flexible facility design. Marks is a frequent author, speaker and consultant on bioprocess technology, facility design & compliance topics. He is active on the ASME Bioprocess Equipment (BPE) standard committee, and serves as chair of the design subcommittee. A graduate of Lafayette College, Mr. Marks holds a BS in Chemical Engineering and is a registered Professional Engineer.