McPherson D. "Mac" Moore, IP Attorney in Clayton, Missouri
focused on IP and Patent
Clayton, MO
Trusted ip attorney serving Clayton.
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Quick answer
McPherson D. "Mac" Moore is an attorney based in Clayton, MISSOURI. The practice focuses on IP and Patent.
- Based in
- Clayton, MISSOURI
- Experience
- attorney
- Known for
- IP · Patent
- Handles IP and Patent matters from Clayton, MISSOURI.
- Recognized with Best Lawyers in America — Litigation - Intellectual Property (2026).
About McPherson D. "Mac" Moore: McPherson D. "Mac" Moore is an attorney based in Clayton, MISSOURI. The practice focuses on IP and Patent.
Areas of practice
McPherson's practice areas in Clayton
McPherson concentrates on ip and patent. Each area below outlines the kind of case McPherson handles, typical outcomes to expect, and how the intake process starts.
IP cases in Clayton, Missouri
McPherson takes ip matters in Clayton, Missouri. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before McPherson agrees to represent you.
Patent cases in Clayton, Missouri
McPherson takes patent matters in Clayton, Missouri. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before McPherson agrees to represent you.
Biography
McPherson D. "Mac" Moore, ip attorney serving Clayton
McPherson D. "Mac" Moore is an attorney based in Clayton, MISSOURI. The practice focuses on IP and Patent. McPherson works from Clayton, Missouri and takes on ip matters across the region.
McPherson D. Moore is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property, Litigation - Patent and Patent Law.
McPherson D., who practices law in Clayton, Missouri, has been recognized since 1995. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which McPherson D. is held by other top lawyers in the same geographic and legal practice area.
McPherson's approach to ip cases
McPherson D. Moore is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property, Litigation - Patent and Patent Law. McPherson D., who practices law in Clayton, Missouri, has been recognized since 1995. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which McPherson D. is held by other top lawyers in the…
Clients McPherson works with
McPherson reviews new inquiries case-by-case for ip and patent matters in Clayton and the surrounding Missouri area.
Credentials
Credentials — where McPherson studied and practices
University of Arkansas
J.D. · 1975
McPherson studied at J.D. in University of Arkansas.
Law school and academic background
McPherson completed J.D. in University of Arkansas. Formal legal training is one signal of substantive knowledge — the day-to-day practice McPherson runs in Missouri is where that training gets applied to real client questions.
Recognition
McPherson's legal honors and published work
McPherson has received 5 formal recognitions from bar associations, industry bodies, and peer-review services.
Best Lawyers in America — Litigation - Intellectual Property
2026
Best Lawyers in America — Litigation - Patent
2026
Best Lawyers in America — Patent Law
2026
Best Lawyers in America — Additional Areas of Practice:
2026
Best Lawyers in America — Trade Secrets Law
2026
Legal awards and honors
Best Lawyers in America — Litigation - Intellectual Property (2026). Best Lawyers in America — Litigation - Patent (2026). Best Lawyers in America — Patent Law (2026). Best Lawyers in America — Additional Areas of Practice: (2026). Best Lawyers in America — Trade Secrets Law (2026).
Locations
McPherson D. "Mac" Moore's office in Clayton
McPherson's primary office is at 120 South Central Avenue, Suite 1600, Clayton, Missouri, 63105. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of McPherson D. "Mac" Moore
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Schedule your consultationHiring guide
How to hire McPherson D. "Mac" Moore — what to expect in your first consultation
Working with a new ip attorney should feel structured. Here's how the first two conversations with McPherson usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
McPherson charges for the initial consult. That fee is credited toward representation if you retain McPherson'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; McPherson will tell you what matters and what doesn't.
Questions to ask a ip attorney in Clayton, Missouri
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 McPherson
McPherson 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. McPherson confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
McPherson'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 McPherson D. "Mac" Moore
How much does it cost to hire McPherson for a ip case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. McPherson walks through the likely range during the consult so there are no surprises.
Does McPherson offer a free consultation?
McPherson charges for the initial consult; that fee is credited toward representation if you retain McPherson's office. Some ip attorneys offer free consults — check McPherson's current terms during booking.
How long do ip cases in Missouri 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. McPherson gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can McPherson take my case if I'm outside Clayton?
McPherson is licensed in Missouri. Matters governed by Missouri law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — McPherson 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 McPherson?
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. McPherson will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is McPherson accepting new ip clients right now?
McPherson'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 Clayton, St Louis and Jefferson City in Missouri
McPherson handles ip matters throughout Missouri. 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 Missouri
If McPherson's intake is full or the fit isn't right, these ip attorneys in Clayton handle similar matters. Every profile below is verified and open to consultations.





