Thank you for visiting and welcome to my website. My name is William H. Eilberg, and I am an attorney in private practice. I have been a sole practitioner since 1983. I am admitted to the bar in both Pennsylvania and Nevada, and I serve clients throughout the U.S. and in foreign countries. Most of my work is conducted by phone and by e-mail. My areas of specialization are: Searches to assess patentability of inventions or registrability of trademarks Preparation and prosecution of patent and trademark applications Preparation and negotiations of licenses relating to intellectual property