Klintworth & Rozenblat LLP

2 registered patent practitioners: 1 patent attorneys and 1 patent agents, Chicago, IL.

• David A. Frey — Patent attorney, Reg. No. 43618, Klintworth & Rozenblat LLP
• Sharon K. Ngwenya — Patent agent, Reg. No. 81320, Klintworth & Rozenblat LLP