IP Library
Patent Agent

David Allen Ruston

Reg. No. 34495
Active
Not accepting new clients
Firm
Marks & Clerk Canada
Location
Toronto, ON M5E 1G4
Phone
416-849-8390
Registration Type
AGENT
Roster
USPTO OED FY25
Search their patent cases → All cases at Marks & Clerk Canada
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.