Registered patent agent
Mark D Penner
Firm
Cassels Brock & Blackwell
Bay Adelaide Centre - North Tower
Address
40 Temperance Street
Suite 3200
Toronto, ON, M5H 0B4
CA
Phone
Registered as
Registered patent agent
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Frequently asked
Frequently asked about Mark D Penner
Is Mark D Penner a registered patent attorney?
Mark D Penner is a registered patent agent (USPTO Registration Number 48092). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Mark D Penner located?
Mark D Penner's office is in Toronto, ON (M5H 0B4). Affiliated with Cassels Brock & Blackwell.
What firm does Mark D Penner work at?
Mark D Penner is listed as affiliated with Cassels Brock & Blackwell on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Mark D Penner?
Mark D Penner's office phone (per the USPTO public roster) is 416-640-3107. 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.