Registered patent attorney
John M Klempir
Address
1 Oak Brook Club Dr
Oak Brook, IL, 60523
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Oak Brook, Illinois
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- Leonard M GiannoneMcCracken & Gillen
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- William E McCrackenMcCracken & Gillen LLC
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Frequently asked
Frequently asked about John M Klempir
Is John M Klempir a registered patent attorney?
Yes. John M Klempir is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 57615). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is John M Klempir located?
John M Klempir's office is in Oak Brook, Illinois (60523).
How do I contact John M Klempir?
John M Klempir's office phone (per the USPTO public roster) is 312-485-1897. 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.