Patent Agent
Ralph Emerson Clarke
Reg. No. 28200
Active
Not accepting new clients
Location
Arlington Heights, IL 60004
Arlington Heights, IL 60004
Phone
847-749-2245
847-749-2245
Registration Type
AGENT
AGENT
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.