IP Library
Patent Agent

Christopher B. Zahn

Reg. No. 83235
Active
Not accepting new clients
Firm
Marshall, Gerstein & Borun LLP
Location
Chicago, IL 60606
Phone
312-423-3459
Registration Type
AGENT
Roster
USPTO OED FY25
Search their patent cases → All cases at Marshall, Gerstein & Borun LLP
Firm and contact info reflects the FY25 roster (last updated September 25). Attorneys may have changed firms since then — patent filings show their current firm of record.