Registered patent agent
Charles Sun
Firm
LIS Technologies
Address
14 Foss Court
Walnut Creek, CA, 94597
US
Phone
Registered as
Registered patent agent
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
- Andrew J. ChanTressler, LLP
- David D ChungUSPTO Reg. 38409
Frequently asked
Frequently asked about Charles Sun
Is Charles Sun a registered patent attorney?
Charles Sun is a registered patent agent (USPTO Registration Number 58380). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Charles Sun located?
Charles Sun's office is in Walnut Creek, California (94597). Affiliated with LIS Technologies.
What firm does Charles Sun work at?
Charles Sun is listed as affiliated with LIS Technologies on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Charles Sun?
Charles Sun's office phone (per the USPTO public roster) is 925-934-5520. 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.