Christopher B. Zahn
Patent attorney, USPTO registration number 83235, status Active.
- Firm
- Marshall ,Gerstein & Borun LLP
- Location
- Chicago, IL
- On the USPTO roster since
- January 2025
Christopher B. Zahn is a USPTO-registered patent attorney (registration number 83235) at Marshall ,Gerstein & Borun LLP, in Chicago, IL. The registration is active on the current USPTO roster, and Christopher B. Zahn has been listed on the roster since January 2025.
Marshall ,Gerstein & Borun LLP has 89 registered patent practitioners on the roster (73 patent attorneys and 15 patent agents), so Christopher B. Zahn works alongside 88 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
- Louis Disanto — Patent attorney, Reg. No. 51331, Banner & Witcoff LTD
- Rebecca S. Dise — Patent agent, Reg. No. 65111, Leydig Voit & Mayer LTD
- Jasper William Dockrey — Patent attorney, Reg. No. 33868, Brinks Gilson & Lione
- Alvin B. Dodek — Patent attorney, Reg. No. 34577, WH Trading, LLC
- Kristen A. Dola — Patent attorney, Reg. No. 70625, RinLaures LLC
- Margaret M. Dolan — Patent attorney, Reg. No. 61087, Kirkland & Ellis LLP
- Kyle B. Dombeck — Patent agent, Reg. No. 80899
- Robert D. Donoghue — Patent attorney, Reg. No. 42493, Holland & Knight LLP
All patent attorneys and agents in Chicago, IL
Patent firms in Illinois · Practitioners by state
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