Patent Attorney
Matthew Virgil Grumbling
Reg. No. 44427
Active
Not accepting new clients
Firm
Matthew V. Grumbling
Matthew V. Grumbling
Location
Litchfield Park, AZ 85340
Litchfield Park, AZ 85340
Phone
760-717-9803
760-717-9803
Registration Type
ATTORNEY
ATTORNEY
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.