San Francisco Patent Attorney David Pressman is a graduate of Penn State University (BSEE) and George Washington University Law School (JD) where he was on the Law Review. He has over 40 years of experience in the patent profession -- as a patent examiner for the U.S. Patent Office, a patent attorney in corporate and private practice, a university instructor, a columnist, and as author of the Patent and Trademark entries to the World Book Encyclopedia. His books have charted the path for over 300,000 inventors. He is also co-author of How to Make Patent Drawings (with Jack Lo), Patent Pending In 24 Hours (with Rich Stim), and Patents For Beginners (with Rich Stim). David E. Blau is a patent attorney at Daly, Crowley, Mofford & Durkee in Canton, Massachusetts, and is a member of the U.S. Patent and Trademark Office and Massachusetts bars. He received his B.S. from the California Institute of Technology, with majors in both Mathematics and Engineering & Applied Science. Prior to law school, he worked for the government as a mathematician, for a number of private companies writing software to perform scalable content storage and distribution and back-office online commerce functions, and co-founded a web design business. He received his J.D. from the Chicago-Kent College of Law with a certificate in Intellectual Property, and has practiced patent law in the Boston area ever since. Outside the practice of law, Dave is a scuba diver and a licensed private pilot who hopes to get his instrument rating someday.