IP Library
Patent Attorney

Sydney R Kokjohn

Reg. No. 63868
Active
Not accepting new clients
Firm
McDonnell Boehnen Hulbert & Berghoff, LLP
Location
Chicago, IL 60606-6709
Phone
312-913-3304
Registration Type
ATTORNEY
Roster
USPTO OED FY25
Search their patent cases → All cases at McDonnell Boehnen Hulbert & Berghoff, 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.