I have 20 years of experience, and specialize in the field of wireless mobile telecommunications with specific knowledge in the areas of smart phone base band, radio frequency (RF), application processor design, WiFi / Bluetooth short range connectivity and operating systems (both real time and graphical OS). I have published on such topics as 3G Wcdma and 4G LTE, hybrid mobile satellite communications and additional 30 published and granted patents. I have testified 30 times on topics such as patents analysis in wireless standards, portfolio analysis and licensing (both in patent pools and cellular 3G standards), clarification of prior art in technical literature, validity analysis and obviousness, litigation support and technology education in patent disputes and reexaminations, expert matter in patent infringement cases, scientific and engineering aspects of prior art. I prepare and build claim charts and invalidation reports.