Patent attorneys and agents in Duncan, OK

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

• Ricky L. Covington — Patent agent, Reg. No. 64666, Halliburton Halliburton
• Thomas R. Weaver — Patent attorney, Reg. No. 25613
• John W. Wustenberg — Patent attorney, Reg. No. 35415, Halliburton Energy Services