Patent attorneys and agents in Avondale, PA

2 USPTO-registered patent practitioners: 1 patent attorneys and 1 patent agents.

• John J. Marshall — Patent attorney, Reg. No. 29671, Drinker Biddle & Reath LLP
• Kelley C. Norton — Patent agent, Reg. No. 50466, E. I. duPont de Nemours & Company, Inc.