Patrick E. Brennan

Patent attorney, USPTO registration number 56511, status Active.

Firm

Armstrong Teasdale LLP

Location

St. Louis, MO

On the USPTO roster since

before May 2006

Patrick E. Brennan is a USPTO-registered patent attorney (registration number 56511) at Armstrong Teasdale LLP, in St. Louis, MO. The registration is active on the current USPTO roster, and Patrick E. Brennan has been listed on the roster since before May 2006.

Armstrong Teasdale LLP has 56 registered patent practitioners on the roster (46 patent attorneys and 10 patent agents), so Patrick E. Brennan works alongside 55 other registered practitioners there.

St. Louis, MO has 221 registered patent practitioners in all: 187 patent attorneys and 34 patent agents.

Other registered practitioners in St. Louis, MO

• Kyle L. Barringer — Patent attorney, Reg. No. 73950, Husch Blackwell LLP
• Mark D. Becker — Patent attorney, Reg. No. 39105, Nidec Motor Corporation
• Michael Patrick Benson — Patent agent, Reg. No. 74099
• Nicholas P. Beulick — Patent attorney, Reg. No. 78073
• Kumar R. Bhushan — Patent agent, Reg. No. 69405
• Thaddeus J. Blenke — Patent attorney, Reg. No. 72710, Thompson Coburn LLP
• Zachary J. Block — Patent attorney, Reg. No. 71896, Polsinelli PC
• George H. Blosser — Patent attorney, Reg. No. 33650, Polster, Lieder, Woodruff & Lucchesi

All patent attorneys and agents in St. Louis, MO

Patent firms in Missouri · Practitioners by state

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