Registered patent attorney
Andrew J. Chan
Firm
Tressler, LLP
Address
1255 Treat Boulevard
Suite 300
Walnut Creek, CA, 94597
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Walnut Creek, California
- Javed S M AfzalUSPTO Reg. 47222
- Nisha AgarwalKILPATRICK TOWNSEND & STOCKTON LLP
- Houtan AmanatKILPATRICK TOWNSEND & STOCKTON LLP
- Juerg W BaenzigerUSPTO Reg. 50339
- Vanessa M BellKilpatrick Townsend & Stockton LLP
- Arthur J BobelLeydig, Voit & Mayer, LLP
- David D ChungUSPTO Reg. 38409
- Jill C DarsowUSPTO Reg. 71968
Frequently asked
Frequently asked about Andrew J. Chan
Is Andrew J. Chan a registered patent attorney?
Yes. Andrew J. Chan is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 68317). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Andrew J. Chan located?
Andrew J. Chan's office is in Walnut Creek, California (94597). Affiliated with Tressler, LLP.
What firm does Andrew J. Chan work at?
Andrew J. Chan is listed as affiliated with Tressler, LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Andrew J. Chan?
Andrew J. Chan's office phone (per the USPTO public roster) is 925-332-0440. 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.