Registered patent agent
John S Koh
Firm
Marks & Clerk
Address
180 Kent Street
Suite 1900
Ottawa, ON, K1P 0B6
CA
Phone
Registered as
Registered patent agent
Other attorneys at Marks & Clerk
Other patent attorneys in Ottawa, ON
- Louis B AllardMBM Intellectual Property Agency
- Dilip C AndradeAndrade IP Service LLP
- Daniel M. AnthonySmart & Biggar
- Ariadni AthanassiadisKyma Professional Corporation
- James D. BakerMarks & Clerk Canada
- Salvatore F. BarbieriBennett Jones LLP
- J David BarransCassan Maclean IP Agency Inc.
- Jerome P. BastienMoffat & Co.
Frequently asked
Frequently asked about John S Koh
Is John S Koh a registered patent attorney?
John S Koh is a registered patent agent (USPTO Registration Number 53943). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is John S Koh located?
John S Koh's office is in Ottawa, ON (K1P 0B6). Affiliated with Marks & Clerk.
What firm does John S Koh work at?
John S Koh is listed as affiliated with Marks & Clerk on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact John S Koh?
John S Koh's office phone (per the USPTO public roster) is 613-236-9561. 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.