Registered patent agent
William K. Cheung
Address
18058 Crystal Downs Terrace
Dumfries, VA, 22026
US
Phone
Registered as
Registered patent agent
Other patent attorneys in Dumfries, Virginia
- William H GriebUSPTO Reg. 45324
- Robert L GriffinUSPTO Reg. 34499
- Charles W StewartUSPTO Reg. 63013
- Michael J. TokarUSPTO Reg. 64099
Frequently asked
Frequently asked about William K. Cheung
Is William K. Cheung a registered patent attorney?
William K. Cheung is a registered patent agent (USPTO Registration Number 81002). 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 K. Cheung located?
William K. Cheung's office is in Dumfries, Virginia (22026).
How do I contact William K. Cheung?
William K. Cheung's office phone (per the USPTO public roster) is 571-432-8743. 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.