Julius C. Chai

Patent agent, USPTO registration number 84334, status Active.

Location

Chicago, IL

On the USPTO roster since

April 2026

Julius C. Chai is a USPTO-registered patent agent (registration number 84334), in Chicago, IL. The registration is active on the current USPTO roster, and Julius C. Chai has been listed on the roster since April 2026.

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

Other registered practitioners in Chicago, IL

• Vangelis Economou — Patent attorney, Reg. No. 32341, Economou IP Law
• Elizabeth J. Eich — Patent agent, Reg. No. 52854, Husch Blackwell LLP
• Audra C. Eidem Heinze — Patent attorney, Reg. No. 61267, Banner & Witcoff LTD
• Lucy Elandjian — Patent attorney, Reg. No. 46164, IP Law Services, LLC
• Lamis G. Eli — Patent attorney, Reg. No. 72068, Segal McCambridge Singer & Mahoney
• William W. Elinski — Patent attorney, Reg. No. 48313, Pretzel and Stouffer
• Vyacheslav Elkin — Patent attorney, Reg. No. 66913, Marshall ,Gerstein & Borun LLP
• Joshua T. Elliott — Patent attorney, Reg. No. 43603, Marshall, Gerstein & Bourn, LLP

All patent attorneys and agents in Chicago, IL

Patent firms in Illinois · Practitioners by state

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