Registered patent attorney
David J Marr
Firm
Clark Hill PLC
Address
130 East Randolph Street
Suite 3900
Chicago, IL, 60601
US
Phone
Registered as
Registered patent attorney
Other attorneys at Clark Hill PLC
- Christopher B ClareUSPTO Reg. 70772 · Washington, DC
- Clifford G CooperUSPTO Reg. 80581 · Lansing, MI
- James R FoleyUSPTO Reg. 39979 · Chicago, IL
- Adam J. FrommUSPTO Reg. 59563 · Chicago, IL
- Richard A GiangiorgiUSPTO Reg. 24284 · Chicago, IL
- Marcos A. NasrUSPTO Reg. 71234 · Detroit, MI
- John S PaniaguasUSPTO Reg. 31051 · Chicago, IL
- John A TangUSPTO Reg. 43404 · Houston, TX
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 David J Marr
Is David J Marr a registered patent attorney?
Yes. David J Marr is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 32915). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is David J Marr located?
David J Marr's office is in Chicago, Illinois (60601). Affiliated with Clark Hill PLC.
What firm does David J Marr work at?
David J Marr is listed as affiliated with Clark Hill PLC on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact David J Marr?
David J Marr's office phone (per the USPTO public roster) is 312-955-5558. 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.