IP Library
Patent Agent

William G Niessen

Reg. No. 29683
Active
Not accepting new clients
Firm
Nixon & Vanderhye, P.C.
Location
Arlington, VA 22203
Phone
703-816-4061
Registration Type
AGENT
Roster
USPTO OED FY25
Search their patent cases → All cases at Nixon & Vanderhye, P.C.
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.