Registered patent agent
William G Niessen
Firm
Nixon & Vanderhye, P.C.
Address
901 North Glebe Road, 11th Floor
Arlington, VA, 22203
US
Phone
Registered as
Registered patent agent
Other attorneys at Nixon & Vanderhye, P.C.
- Leonidas BoutsikarisUSPTO Reg. 61377 · Arlington, VA
- Paul T BowenUSPTO Reg. 38009 · Arlington, VA
- Harold W BurnamUSPTO Reg. 29366 · Alexandria, VA
- Duane M ByersUSPTO Reg. 33363 · Arlington, VA
- Bryan Hubert DavidsonUSPTO Reg. 30251 · Arlington, VA
- Robert W FarisUSPTO Reg. 31352 · Arlington, VA
- Updeep S GillUSPTO Reg. 37334 · Arlington, VA
- Alan Mark KagenUSPTO Reg. 36178 · Arlington, VA
Other patent attorneys in Arlington, Virginia
- Michael-Vincent R AbejuelaBean, Kinney & Korman, P.C.
- William G AckermanUSPTO Reg. 45320
- Olubukunola T AinaVerizon Legal Department
- Daniel F. AlbertUSPTO Reg. 57701
- Dennis Lichti AlbrechtUSPTO Reg. 47364
- Donald A AllisonUSPTO Reg. 68572
- Jonathan BackenstoseUSPTO Reg. 47399
- Michael J BadagliaccaOffice of Naval Research
Frequently asked
Frequently asked about William G Niessen
Is William G Niessen a registered patent attorney?
William G Niessen is a registered patent agent (USPTO Registration Number 29683). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is William G Niessen located?
William G Niessen's office is in Arlington, Virginia (22203). Affiliated with Nixon & Vanderhye, P.C..
What firm does William G Niessen work at?
William G Niessen is listed as affiliated with Nixon & Vanderhye, P.C. on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact William G Niessen?
William G Niessen's office phone (per the USPTO public roster) is 703-816-4061. Verify availability and intake details directly with the firm before sending privileged materials.
Should I prepare anything before contacting a patent attorney?
Yes — most patent attorneys quote based on a brief. Persoona's intellectual property module generates a prior-art analysis, defensibility scorecard, and a draft USPTO filing package so you arrive with a brief, not a blank slate. Free to run.
Profile sourced from the USPTO OEDCI Practitioner Roster. Persoona did not provide, edit, or curate this data — every field is pulled directly from the public roster.