Registered patent attorney
Charles D. Siegal
Firm
Munger Tolles & Olson LLP
Address
355 S. Grand Ave.
35th Floor
Los Angeles, CA, 90071-1560
US
Phone
Registered as
Registered patent attorney
Other attorneys at Munger Tolles & Olson LLP
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Frequently asked
Frequently asked about Charles D. Siegal
Is Charles D. Siegal a registered patent attorney?
Yes. Charles D. Siegal is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 62300). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Charles D. Siegal located?
Charles D. Siegal's office is in Los Angeles, California (90071-1560). Affiliated with Munger Tolles & Olson LLP.
What firm does Charles D. Siegal work at?
Charles D. Siegal is listed as affiliated with Munger Tolles & Olson LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Charles D. Siegal?
Charles D. Siegal's office phone (per the USPTO public roster) is 213-683-9181. 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.