Registered patent agent
Mary Katherine O. Mastaler
Firm
Michael Best
Address
1000 Maine Ave SW
400
Washington, DC, 20024
US
Phone
Registered as
Registered patent agent
Other attorneys at Michael Best
- Brent Elliott AussprungUSPTO Reg. 76354 · Milwaukee, WI
- Jonathan P BuettnerUSPTO Reg. 82384 · Milwaukee, WI
- Jacob T. CayaUSPTO Reg. 75666 · Milwaukee, WI
- Lisa V MuellerUSPTO Reg. 38978 · Chicago, IL
- Serene R. SaharUSPTO Reg. 76324 · Milwaukee, WI
- Megan E. TappanUSPTO Reg. 79526 · Milwaukee, WI
- Arimi YamadaUSPTO Reg. 70156 · Washington, DC
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 Mary Katherine O. Mastaler
Is Mary Katherine O. Mastaler a registered patent attorney?
Mary Katherine O. Mastaler is a registered patent agent (USPTO Registration Number 84413). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Mary Katherine O. Mastaler located?
Mary Katherine O. Mastaler's office is in Washington, District of Columbia (20024). Affiliated with Michael Best.
What firm does Mary Katherine O. Mastaler work at?
Mary Katherine O. Mastaler is listed as affiliated with Michael Best on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Mary Katherine O. Mastaler?
Mary Katherine O. Mastaler's office phone (per the USPTO public roster) is 202-747-9560. 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.