Patent Agent
Alvin P Changco
Reg. No. 48625
Active
Not accepting new clients
Location
Reading, PA 19611
Reading, PA 19611
Phone
610-334-2622
610-334-2622
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.