Clayton R. Zak

Patent attorney, USPTO registration number 72156, status Active.

Firm

Thompson Coburn LLP

Location

St. Louis, MO

On the USPTO roster since

November 2014

Clayton R. Zak is a USPTO-registered patent attorney (registration number 72156) at Thompson Coburn LLP, in St. Louis, MO. The registration is active on the current USPTO roster, and Clayton R. Zak has been listed on the roster since November 2014.

Thompson Coburn LLP has 22 registered patent practitioners on the roster (22 patent attorneys), so Clayton R. Zak works alongside 21 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

• Andrew J. Smith — Patent attorney, Reg. No. 68066, Bruzga & Associates
• Benjamin J. Sodey — Patent attorney, Reg. No. 62258, Polsinelli PC
• Evan R. Sotiriou — Patent attorney, Reg. No. 46247, Tucker Ellis LLP
• Michael J. Spenner — Patent attorney, Reg. No. 70275
• Kevin C. Staed — Patent attorney, Reg. No. 77170, Carmody MacDonald P.C.
• Mark Edward Stallion — Patent attorney, Reg. No. 46132, Greensfelder, Hemker & Gale, P.C.
• Gale W. Starkey — Patent agent, Reg. No. 66972, Bayer
• Nancy A. Swiezynski — Patent attorney, Reg. No. 65936, Senniger Powers LLP

All patent attorneys and agents in St. Louis, MO

Patent firms in Missouri · Practitioners by state

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