Registered patent attorney
Leif R SigmondJr
Firm
Baker &Hostetler LLP
Address
191 North Wacker Drive
Suite 3100
Chicago, IL, 60606
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about Leif R Sigmond
Is Leif R Sigmond a registered patent attorney?
Yes. Leif R Sigmond is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 35680). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Leif R Sigmond located?
Leif R Sigmond's office is in Chicago, Illinois (60606). Affiliated with Baker &Hostetler LLP.
What firm does Leif R Sigmond work at?
Leif R Sigmond is listed as affiliated with Baker &Hostetler LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Leif R Sigmond?
Leif R Sigmond's office phone (per the USPTO public roster) is 312-416-6200. 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.