Gemmel, Charles T.

Ronald R. Demsher is a counsel in the firm's Intellectual Property Department. He joined the firm in 2003. Mr. Demsher’s practice includes litigation and prosecution of patents (primarily in the electrical and mechanical arts), performing patentability and infringement analyses and general intellectual property advice. 

Representative areas of patent experience include: electrical circuits and systems, medical devices (CT and ultrasonic imaging systems, intravenous bubble detector, catheter navigation system), molecular modeling system, pattern/speech recognition systems, sleep analysis, magnetic field detectors, accelerometers, temperature mapping systems, telecommunications systems (protocols and components), wireless LAN, Internet applications, laser gyroscopes, loudspeaker components and systems, mechanical devices and systems (electro-mechanical valve, pressure transducers, disk balancing system, circuit module connector and guide, load counterbalancing system).

Mr. Demsher was formerly associated with McDermott, Will and Emery. 

Before receiving his law degree, Mr. Demsher was an electrical engineer for 14 years, designing and developing commercial and military communications systems. His digital design experience includes spread spectrum hardware, cryptographic systems, high accuracy frequency reference and chronometer systems, high speed electrical interfaces and ASIC/multichip modules. He also has system design experience in wideband HF systems, microwave systems ranging from 1 to 20 GHz, and a millimeter-wave (93 GHz) IFF system.

Mr. Demsher received his JD degree, cum laude, from Suffolk University Law School. He earned a BSEE degree, cum laude, from Ohio University and an MSEE degree in microwave applications from the University of Massachusetts. 

Mr. Demsher is admitted to practice in the Commonwealth of Massachusetts and in the United States District Court, District of Massachusetts. He is also registered to practice before the United States Patent and Trademark Office.