Mr. Michaelis is Chair of Seyfarth Shaw's Intellectual Property Practice Group. He concentrates in all areas of intellectual property law and technology business practice. His practice includes intellectual property litigation and counseling, and validity and infringement analysis. He has testified as an expert on patent issues, including validity and non-infringement, and argued appeals before the United States Patent and Trademark Office Board of Patent Appeals and Interferences and the Court of Appeals for the Federal Circuit. Mr. Michaelis represents domestic and international clientele in technology business transactions involving intellectual property, including technology transfer and development agreement negotiation and drafting, technology spin-offs, private placements, acquisitions, and dispositions and joint ventures.

Mr. Michaelis has also written and prosecuted numerous patent applications for electrical/electronic, electromechanical, and computer/software inventions in areas such as data processing and information technologies, medical devices and laboratory instrumentation, as well as business method and internet applications including e-commerce software, credit card processing, and bill payment systems.