Derrick L. Fields

Patent agent, USPTO registration number 50133, status Active.

Firm

Staas & Halsey LLP

Location

Washington, DC

On the USPTO roster since

before May 2006

Derrick L. Fields is a USPTO-registered patent agent (registration number 50133) at Staas & Halsey LLP, in Washington, DC. The registration is active on the current USPTO roster, and Derrick L. Fields has been listed on the roster since before May 2006.

Staas & Halsey LLP has 15 registered patent practitioners on the roster (12 patent attorneys and 3 patent agents), so Derrick L. Fields works alongside 14 other registered practitioners there.

Washington, DC has 2,644 registered patent practitioners in all: 1,995 patent attorneys and 568 patent agents.

Other registered practitioners in Washington, DC

• James M. Amend — Patent attorney, Reg. No. 25502, United States Court Of Appeals for The Federal Circuit
• Burton A. Amernick — Patent attorney, Reg. No. 24852, Polsinelli PC
• Edward S. Ammeen — Patent agent, Reg. No. 34077, Naval Sea Systems Command
• Tiaotiao Anchondo — Patent agent, Reg. No. 75455, Sterne, Kessler, Goldstein & Fox P.L.L.C.
• Taniel E. Anderson — Patent attorney, Reg. No. 64431, ArentFox Schiff LLP
• Chad C. Anderson — Patent attorney, Reg. No. 44505, Venable LLP
• William H. Anderson — Patent attorney, Reg. No. 34765, Robertson & Anderson, PLLC
• Thomas E. Anderson — Patent attorney, Reg. No. 37063, Wilmer Cutler Pickering Hale And Dorr LLP

All patent attorneys and agents in Washington, DC

Patent firms in District of Columbia · Practitioners by state

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