Registered patent agent
Stephen F Hallberg
Address
5017 Collis Ave.
South Pasadena, CA, 91030
US
Phone
Registered as
Registered patent agent
Frequently asked
Frequently asked about Stephen F Hallberg
Is Stephen F Hallberg a registered patent attorney?
Stephen F Hallberg is a registered patent agent (USPTO Registration Number 64481). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Stephen F Hallberg located?
Stephen F Hallberg's office is in South Pasadena, California (91030).
How do I contact Stephen F Hallberg?
Stephen F Hallberg's office phone (per the USPTO public roster) is 310-425-3716. 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.