Registered patent agent
Richard A. Castellano
Firm
Oliff & Berridge, PLC
Address
277 South Washington Street
Suite 500
Alexandria, VA, 22314
US
Phone
Registered as
Registered patent agent
Other attorneys at Oliff & Berridge, PLC
- William P BerridgeUSPTO Reg. 30024 · Alexandria, VA
- Mario A CostantinoUSPTO Reg. 33565 · Alexandria, VA
- Joel M. GotkinUSPTO Reg. 66316 · St. Louis, MO
- Gang LuoUSPTO Reg. 50559 · Alexandria, VA
- J. Adam NeffUSPTO Reg. 41218 · Alexandria, VA
- James A OliffUSPTO Reg. 27075 · Alexandria, VA
- Thomas J PardiniUSPTO Reg. 30411 · Alexandria, VA
- Lauren C SchlehUSPTO Reg. 65457 · Alexandria, VA
Other patent attorneys in Alexandria, Virginia
- Russell E AdamsAdams Communications
- Ibrahim A. M. AdenijiUSPTO Reg. 72325
- Tiffany N. AdigweOliff PLC
- Sahil AggarwalUSPTO Reg. 83821
- Nasir U. AhmedMaier and Maier
- Stanislaus AksmanHershkovitz & Associates, LLC
- Edward B AlexanderEBA Law Offices, PLC
- Ryan E. AlleyAlley IP
Frequently asked
Frequently asked about Richard A. Castellano
Is Richard A. Castellano a registered patent attorney?
Richard A. Castellano is a registered patent agent (USPTO Registration Number 61961). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Richard A. Castellano located?
Richard A. Castellano's office is in Alexandria, Virginia (22314). Affiliated with Oliff & Berridge, PLC.
What firm does Richard A. Castellano work at?
Richard A. Castellano is listed as affiliated with Oliff & Berridge, PLC on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Richard A. Castellano?
Richard A. Castellano's office phone (per the USPTO public roster) is 703-836-6400. 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.