Dutro Evans Campbell

Patent attorney, USPTO registration number 46239, status Active.

Firm

Campbell IP

Location

St. Louis, MO

On the USPTO roster since

before May 2006

Dutro Evans Campbell is a USPTO-registered patent attorney (registration number 46239) at Campbell IP, in St. Louis, MO. The registration is active on the current USPTO roster, and Dutro Evans Campbell has been listed on the roster since before May 2006.

Campbell IP is listed with one registered practitioner on the current roster.

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

Other registered practitioners in St. Louis, MO

• Linda L. Lewis — Patent attorney, Reg. No. 31212, CreatiVenture Law
• Chunping Li — Patent attorney, Reg. No. 57755, Monsanto Company
• Zhen J. Li — Patent attorney, Reg. No. 71796, Cigna
• Marriam Lin — Patent attorney, Reg. No. 76161, Husch Blackwell
• Michael H. Longmeyer — Patent attorney, Reg. No. 55402, Polsinelli PC
• Raymond Carl Loyer, Sr — Patent attorney, Reg. No. 21007
• Haisheng Lu — Patent agent, Reg. No. 53241, Monsanto Company
• Lionel Louis Lucchesi — Patent attorney, Reg. No. 25891, Polster Lieder Woodruff & Lucchesi L.C.

All patent attorneys and agents in St. Louis, MO

Patent firms in Missouri · Practitioners by state

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