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Registered patent attorney
Sean Patrick O'Hanlon
Firm
Nixon Peabody LLP
Address
799 9th Street NW
Suite 500
Washington, DC, 20001
US
Phone
Registered as
Registered patent attorney
Other attorneys at Nixon Peabody LLP
- Elizabeth W. BaioUSPTO Reg. 62744 · Chicago, IL
- Susanna C BennUSPTO Reg. 63611 · Boston, MA
- Derrick Vincent BreskaUSPTO Reg. 74266 · San Francisco, CA
- Daniel J BurnhamUSPTO Reg. 39618 · Chicago, IL
- Stephen W. ChenUSPTO Reg. 60629 · Los Angeles, CA
- Nicholas J. ChoiUSPTO Reg. 69014 · New York, NY
- Andrew Y ChoungUSPTO Reg. 46622 · Los Angeles, CA
- Angelo J. ChristopherUSPTO Reg. 81594 · Chicago, IL
Other patent attorneys in Washington, District of Columbia
- Alisa S AbbottBanner Witcoff
- Ahmed Abdel-RahmanPillsbury Winthrop Shaw Pittman LLP
- Margaret A AbernathyBaker & Hostetler LLP
- Michael T. AbramsonJordan IP Law
- Khadija Abdulkadir AbuHoward University School of Law
- Deepa AcharyaQuinn Emanuel UrQuhart & Sullivan LLP
- Canek AcostaMayer Brown LLP
- Stephanie N. AdamakosPaul Hastings LLP
Frequently asked
Frequently asked about Sean Patrick O'Hanlon
Is Sean Patrick O'Hanlon a registered patent attorney?
Yes. Sean Patrick O'Hanlon is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 47252). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Sean Patrick O'Hanlon located?
Sean Patrick O'Hanlon's office is in Washington, District of Columbia (20001). Affiliated with Nixon Peabody LLP.
What firm does Sean Patrick O'Hanlon work at?
Sean Patrick O'Hanlon is listed as affiliated with Nixon Peabody LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Sean Patrick O'Hanlon?
Sean Patrick O'Hanlon's office phone (per the USPTO public roster) is 202-585-8402. 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.