John L. Ambrogi, IP Attorney in Chicago, Illinois
Over 36 years of legal practice · focused on IP, Litigation, and Patent · 4.4/5 rating from 1 verified client review
Chicago, IL
Practicing ip in Chicago since 1990.
- 36+
- Years practicing
- 4.4 ★
- 1 client review
- 2
- Bar admissions
Practices in
Are you John L. Ambrogi?
This profile was built from public bar records and is still unclaimed. Claim it free to control your photo, bio, and fees — and get client inquiries sent straight to you.
Quick answer
John L. Ambrogi is an attorney based in Chicago, IL. The practice focuses on IP, Litigation, and Patent. John has over 36 years of legal experience. Rated 4.4 out of 5 from 1 client review.
- Based in
- Chicago, IL
- Experience
- over 36 years
- Known for
- IP · Litigation · Patent
- Handles IP, Litigation, and Patent matters from Chicago, IL.
- Over 36 years of practice as a licensed attorney.
- Recognized with BV Distinguished.
About John L. Ambrogi: John L. Ambrogi is an attorney based in Chicago, IL. The practice focuses on IP, Litigation, and Patent. John has over 36 years of legal experience. Rated 4.4 out of 5 from 1 client review.
Areas of practice
Legal matters John takes on
John concentrates on ip, litigation, patent, and trademark. Each area below outlines the kind of case John handles, typical outcomes to expect, and how the intake process starts.
IP
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Litigation
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Patent
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Trademark
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IP cases in Chicago, Illinois
John takes ip matters in Chicago, Illinois. 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.
Litigation cases in Chicago, Illinois
John takes litigation matters in Chicago, Illinois. 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.
Patent cases in Chicago, Illinois
John takes patent matters in Chicago, Illinois. 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.
Trademark cases in Chicago, Illinois
John takes trademark matters in Chicago, Illinois. 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 L. Ambrogi — ip lawyer in Chicago
John L. Ambrogi is an attorney based in Chicago, IL. The practice focuses on IP, Litigation, and Patent. John has over 36 years of legal experience. Rated 4.4 out of 5 from 1 client review.
John L. Ambrogi is a lawyer practicing trademark infringement, patent infringement, civil litigation and 1 other area of law. John received a B.S. degree from Loyola University in 1987, and has been licensed for 36 years. John practices in Chicago, IL.
John's approach to ip cases
John L. Ambrogi is a lawyer practicing trademark infringement, patent infringement, civil litigation and 1 other area of law. John received a B.S. degree from Loyola University in 1987, and has been licensed for 36 years. John practices in Chicago, IL.
Clients John works with
John reviews new inquiries case-by-case for ip, litigation, and patent matters in Chicago and the surrounding Illinois area.
Credentials
Education, bar admissions, and languages
Loyola University
J.D. · 1990
Loyola University
B.S. · 1987
Jurisdictions
John's state bar admissions
Illinois
1990 · ACTIVE
U.S. District Court,
1990 · ACTIVE
John studied at J.D. in Loyola University and B.S. in Loyola University.
Law school and academic background
John completed J.D. in Loyola University and B.S. in Loyola University. Formal legal training is one signal of substantive knowledge — the day-to-day practice John runs in Illinois is where that training gets applied to real client questions.
Recognition
Recognition and thought leadership
John has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
BV Distinguished
Legal awards and honors
BV Distinguished.
Locations
John L. Ambrogi's office in Chicago
John's primary office is at 161 N Clark St Ste 4700, Chicago, IL, 60601-3201. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of John L. Ambrogi — 4.4/5 rating from 1 verified client review
Every review below is from a verified client of John. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing ip attorneys in Chicago.
4.4
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once John L. Ambrogi claims this profile.
Read all reviewsHiring guide
How to hire John L. Ambrogi — what to expect in your first consultation
Working with a new ip 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 ip attorney in Chicago, Illinois
A short list to run through before you commit: How many ip 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 ip practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every ip 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 ip practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about John L. Ambrogi
How much does it cost to hire John for a ip 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 ip attorneys offer free consults — check John's current terms during booking.
How long do ip cases in Illinois typically take?
Simple ip 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 Chicago?
John is licensed in Illinois. Matters governed by Illinois law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — John will tell you if the case is a fit or refer you to someone closer to your court.
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 ip clients right now?
John's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
IP attorneys serving Chicago, Springfield and Northbrook in Illinois
John handles ip matters throughout Illinois. Each city below is a direct link into the search page for verified ip attorneys in that community.
More counsel
Other top-rated ip attorneys in Illinois
If John's intake is full or the fit isn't right, these ip attorneys in Chicago handle similar matters. Every profile below is verified and open to consultations.





