Patent Attorney
Zhangyuan Ji
Reg. No. 800046
Active
Not accepting new clients
Firm
Arch & Lake LLP
Arch & Lake LLP
Location
Chicago, IL 60601
Chicago, IL 60601
Phone
773-680-9572
773-680-9572
Registration Type
LIMITED
LIMITED
Roster
USPTO OED FY25
USPTO OED FY25
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.