Registered patent agent
Daniel G Zhang
Firm
Irwin IP LLC
Irwin IP LLC
Address
222 S. Riverside Plaza, Suite 2350
Chicago, IL, 60607
US
Phone
Registered as
Registered patent agent
Other attorneys at Irwin IP LLC
Other patent attorneys in Chicago, Illinois
- Lawrence H AaronsonMcDonnell Boehnen Hulbert & Berghoff LLP
- Dennis J AbdelnourHonigman LLP
- 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 Daniel G Zhang
Is Daniel G Zhang a registered patent attorney?
Daniel G Zhang is a registered patent agent (USPTO Registration Number 78856). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Daniel G Zhang located?
Daniel G Zhang's office is in Chicago, Illinois (60607). Affiliated with Irwin IP LLC.
What firm does Daniel G Zhang work at?
Daniel G Zhang is listed as affiliated with Irwin IP LLC on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Daniel G Zhang?
Daniel G Zhang's office phone (per the USPTO public roster) is 312-667-6199. 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.