Registered patent agent
Joseph F Guihan
Firm
Treyz Law Group
Address
870 Market Street
Suite 975
San Francisco, CA, 94102
US
Phone
Registered as
Registered patent agent
Other attorneys at Treyz Law Group
Other patent attorneys in San Francisco, California
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- Bonnie M AdellZendesk, Inc.
- Michael T AdelsheimTucker Ellis, LLP
- Matthew Allan AdrianowyczWilson Sonsini Goodrich & Rosati
- Anchal AgarwalAlston & Bird LLP
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Frequently asked
Frequently asked about Joseph F Guihan
Is Joseph F Guihan a registered patent attorney?
Joseph F Guihan is a registered patent agent (USPTO Registration Number 73411). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Joseph F Guihan located?
Joseph F Guihan's office is in San Francisco, California (94102). Affiliated with Treyz Law Group.
What firm does Joseph F Guihan work at?
Joseph F Guihan is listed as affiliated with Treyz Law Group on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Joseph F Guihan?
Joseph F Guihan's office phone (per the USPTO public roster) is 415-404-6519. 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.