Registered patent attorney
W Dennis Drehkoff
Firm
Dennis IP Law Group, LLC
Address
1150 Wilmette Avenue
Suite C
Wilmette, IL, 60091
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Wilmette, Illinois
- Jacob M CahnmanUSPTO Reg. 74842
- Danielle T DarlingUSPTO Reg. 37536
- Cynthia Susan KovacevicUSPTO Reg. 35578
- Peter Stephen LucyshynUSPTO Reg. 19875
- Michael P MalmUSPTO Reg. 63276
- Eric P MartinUSPTO Reg. 48280
- Daniel Allen MurrayUSPTO Reg. 37195
Frequently asked
Frequently asked about W Dennis Drehkoff
Is W Dennis Drehkoff a registered patent attorney?
Yes. W Dennis Drehkoff is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 27193). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is W Dennis Drehkoff located?
W Dennis Drehkoff's office is in Wilmette, Illinois (60091). Affiliated with Dennis IP Law Group, LLC.
What firm does W Dennis Drehkoff work at?
W Dennis Drehkoff is listed as affiliated with Dennis IP Law Group, LLC on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact W Dennis Drehkoff?
W Dennis Drehkoff's office phone (per the USPTO public roster) is 847-906-4406. 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.