Slavin. Having worked in the field of intellectual property since 1988, Ms. Gerstemeier handles an array of issues pertaining to patent prosecution. Her responsibilities include managing the critical dates system, coordinating U.S. and foreign patent prosecution, and preparing and filing ongoing correspondence with the United States Patent & Trademark Office. Ms. Gerstemeier also handles coordinating foreign patent prosecution including the preparation and filing of International (PCT) applications and national phase filings.