Registered patent attorney
Harold J Fassnacht
Firm
Miller Matthias & Hull LLP
Address
One North Franklin Street
Suite 2350
Chicago, IL, 60606
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Chicago, Illinois
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- Holby Matthew AbernNeal, Gerber & Eisenberg LLP
- Cassandra L. AbernathyUSPTO Reg. 75330
- John AbramicSteptoe & Johnson LLP
- David Brian AbramowitzLocke Lord LLP
- Hugh A AbramsShook, Hardy & Bacon LLP
- Matthias AbrellMarshall Gerstein & Borun, LLP
Frequently asked
Frequently asked about Harold J Fassnacht
Is Harold J Fassnacht a registered patent attorney?
Yes. Harold J Fassnacht is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 35507). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Harold J Fassnacht located?
Harold J Fassnacht's office is in Chicago, Illinois (60606). Affiliated with Miller Matthias & Hull LLP.
What firm does Harold J Fassnacht work at?
Harold J Fassnacht is listed as affiliated with Miller Matthias & Hull LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Harold J Fassnacht?
Harold J Fassnacht's office phone (per the USPTO public roster) is 312-235-4765. 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.