Katherine H. Johnson

Patent attorney, USPTO registration number 72199, status Active.

Firm

Steptoe & Johnson LLP

Location

Chicago, IL

On the USPTO roster since

November 2014

Katherine H. Johnson is a USPTO-registered patent attorney (registration number 72199) at Steptoe & Johnson LLP, in Chicago, IL. The registration is active on the current USPTO roster, and Katherine H. Johnson has been listed on the roster since November 2014.

Steptoe & Johnson LLP has 23 registered patent practitioners on the roster (21 patent attorneys and 2 patent agents), so Katherine H. Johnson works alongside 22 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

• Paul C. Craane — Patent attorney, Reg. No. 38851, Cook Alex LTD
• Lawrence Jay Crain — Patent attorney, Reg. No. 31497, Greer Burns & Crain LTD
• Leah C. Cravitz — Patent agent, Reg. No. 82494
• Philip J. Crihfield — Patent attorney, Reg. No. 25621, Sidley Austin Brown and Wood
• Alexandra E. Criner — Patent attorney, Reg. No. 80076, McDonnell Bohnen Hulbert & Berghoff
• Steven G. Criner — Patent agent, Reg. No. 82954, Honigman LLP
• Harriet P. Croke — Patent attorney, Reg. No. 57858, U. S. EPA Region 5
• Mark William Croll — Patent attorney, Reg. No. 31098, Law Offices of Mark W. Croll

All patent attorneys and agents in Chicago, IL

Patent firms in Illinois · Practitioners by state

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