John Koh, Patent Attorney in the United States
Over 31 years of legal practice
AssociateatMarks & Clerk Canada
Practicing patent since 1995.
- 31+
- Years practicing
- 1
- Bar admission
Practices in
Are you John Koh?
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Quick answer
John Koh is an associate based in Ottawa, ON. The practice focuses on Patent. John has over 31 years of legal experience. Currently practicing at Marks & Clerk Canada.
- Based in
- Ottawa, ON
- Experience
- over 31 years
- Known for
- Patent
- Handles Patent matters from Ottawa, ON.
- Over 31 years of practice as a licensed attorney.
About John Koh: John Koh is an associate based in Ottawa, ON. The practice focuses on Patent. John has over 31 years of legal experience. Currently practicing at Marks & Clerk Canada.
Areas of practice
Legal matters John takes on
John concentrates on patent. Each area below outlines the kind of case John handles, typical outcomes to expect, and how the intake process starts.
Patent cases nationwide
John takes patent matters nationwide. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before John agrees to represent you.
Biography
Meet John Koh — patent lawyer in the U.S.
John Koh is an associate based in Ottawa, ON. The practice focuses on Patent. John has over 31 years of legal experience. Currently practicing at Marks & Clerk Canada.
John Koh is a lawyer practicing patents. John received a M.B.A. degree from University of Ottawa, and has been licensed for 31 years. John practices at Marks & Clerk Canada in Ottawa, ON.
How John handles patent matters
John Koh is a lawyer practicing patents. John received a M.B.A. degree from University of Ottawa, and has been licensed for 31 years. John practices at Marks & Clerk Canada in Ottawa, ON.
The kind of cases John takes
John reviews new inquiries case-by-case for patent matters in the United States.
Credentials
Education, bar admissions, and languages
University of Ottawa LL.B.
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University of Ottawa M.B.A. University of Toronto B.Sc. University of Toronto Mathematics and Physics
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Jurisdictions
John's state bar admissions
Ontario
1995 · ACTIVE
John studied at — in University of Ottawa LL.B. and — in University of Ottawa M.B.A. University of Toronto B.Sc. University of Toronto Mathematics and Physics.
Law school and academic background
John completed — in University of Ottawa LL.B. and — in University of Ottawa M.B.A. University of Toronto B.Sc. University of Toronto Mathematics and Physics. Formal legal training is one signal of substantive knowledge — the day-to-day practice John runs in the state is where that training gets applied to real client questions.
Locations
John Koh's office in Ottawa
John's primary office is at 180 Kent St., Ste. 1900, Ottawa, ON. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of John Koh
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Schedule your consultationHiring guide
How to hire John Koh — what to expect in your first consultation
Working with a new patent attorney should feel structured. Here's how the first two conversations with John usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
John charges for the initial consult. That fee is credited toward representation if you retain John's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; John will tell you what matters and what doesn't.
Questions to ask a patent attorney in your state
A short list to run through before you commit: How many patent matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for John
John discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in patent practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every patent matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. John confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
John's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many patent practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about John Koh
How much does it cost to hire John for a patent case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. John walks through the likely range during the consult so there are no surprises.
Does John offer a free consultation?
John charges for the initial consult; that fee is credited toward representation if you retain John's office. Some patent attorneys offer free consults — check John's current terms during booking.
How long do patent cases in this state typically take?
Simple patent matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. John gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can John take my case if I'm outside the area?
John evaluates matters case by case. If the venue is outside John's regular jurisdictions, the intake call will confirm whether direct representation or a referral makes more sense.
What should I bring to my first meeting with John?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. John will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is John accepting new patent clients right now?
John's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.