Registered patent attorney
David Yu-Tong Chang
Address
9367 65th St N
Stillwater, MN, 55082
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Stillwater, Minnesota
- Kari H BartingaleUSPTO Reg. 35183
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- Mark W BinderKagan Binder PLLC
- Dale A BjorkmanKagan Binder PLLC
- David W BlackUSPTO Reg. 42331
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Frequently asked
Frequently asked about David Yu-Tong Chang
Is David Yu-Tong Chang a registered patent attorney?
Yes. David Yu-Tong Chang is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 51545). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is David Yu-Tong Chang located?
David Yu-Tong Chang's office is in Stillwater, Minnesota (55082).
How do I contact David Yu-Tong Chang?
David Yu-Tong Chang's office phone (per the USPTO public roster) is 763-514-4963. 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.