Mark John Nahnsen

Patent attorney, USPTO registration number 51093, status Active.

Firm

Barnes & Thornburg LLP

Location

Chicago, IL

On the USPTO roster since

before May 2006

Mark John Nahnsen is a USPTO-registered patent attorney (registration number 51093) at Barnes & Thornburg LLP, in Chicago, IL. The registration is active on the current USPTO roster, and Mark John Nahnsen has been listed on the roster since before May 2006.

Barnes & Thornburg LLP has 88 registered patent practitioners on the roster (77 patent attorneys and 11 patent agents), so Mark John Nahnsen works alongside 87 other registered practitioners there.

Chicago, IL has 1,896 registered patent practitioners in all: 1,537 patent attorneys and 303 patent agents.

Other registered practitioners in Chicago, IL

• Jody L. Factor — Patent attorney, Reg. No. 34157, Factor Intellectual Property Law Group, Ltd.
• Brian G. Fahrenbach — Patent attorney, Reg. No. 72603, Rakoczy Molino Mazzochi Siwik LLP
• Jill A. Fahrlander — Patent attorney, Reg. No. 42518, Valauskas Corder LLC
• Martin M. Faier — Patent attorney, Reg. No. 20294, Faier & Faier P.C.
• James M. Faier — Patent attorney, Reg. No. 56731, Faier & Faier P.C.
• Adam J. Faier — Patent attorney, Reg. No. 56898, McDonnell Boehnen Hulbert & Berghoff LLP
• Thomas A. Fairhall — Patent attorney, Reg. No. 34591, McDonnell Boehnen Hulbert & Berghoff LLP
• Christine A. Falaschetti — Patent agent, Reg. No. 73286, McDonnell Boehnen Hilbert and Berghoff LLP

All patent attorneys and agents in Chicago, IL

Patent firms in Illinois · Practitioners by state

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