Registered patent attorney
Leonard Friedman
Firm
Hahn Loeser & Parks, LLP
Address
125 South Wacker Drive
Suite 2900
Chicago, IL, 60606
US
Phone
Registered as
Registered patent attorney
Other attorneys at Hahn Loeser & Parks, LLP
- Daniel Ronald CherryUSPTO Reg. 29054 · Chicago, IL
- John J CunniffUSPTO Reg. 42451 · Naples, FL
- Steven Eric FeldmanUSPTO Reg. 40604 · Chicago, IL
- Walter J KawulaUSPTO Reg. 39724 · Chicago, IL
- Sherry L RolloUSPTO Reg. 61447 · Chicago, IL
- Daniel J. SmolaUSPTO Reg. 61631 · Akron, OH
- Joel S SonnenbergUSPTO Reg. 70766 · Cleveland, OH
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 Leonard Friedman
Is Leonard Friedman a registered patent attorney?
Yes. Leonard Friedman is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 37135). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Leonard Friedman located?
Leonard Friedman's office is in Chicago, Illinois (60606). Affiliated with Hahn Loeser & Parks, LLP.
What firm does Leonard Friedman work at?
Leonard Friedman is listed as affiliated with Hahn Loeser & Parks, LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Leonard Friedman?
Leonard Friedman's office phone (per the USPTO public roster) is 312-637-3005. 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.