William Owen Hennessey, IP Attorney in Concord, New Hampshire
Over 39 years of legal practice · 4.4/5 rating from 1 verified client review
Prof. of Law
Concord, NH
Practicing ip in Concord since 1987.
- 39+
- Years practicing
- 4.4 ★
- 1 client review
- 3
- Bar admissions
Practices in
Are you William Owen Hennessey?
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
William Owen Hennessey is a prof. of law based in Concord, NH. The practice focuses on IP. William has over 39 years of legal experience. Rated 4.4 out of 5 from 1 client review.
- Based in
- Concord, NH
- Experience
- over 39 years
- Known for
- IP
- Handles IP matters from Concord, NH.
- Over 39 years of practice as a licensed attorney.
- Recognized with BV Distinguished.
About William Owen Hennessey: William Owen Hennessey is a prof. of law based in Concord, NH. The practice focuses on IP. William has over 39 years of legal experience. Rated 4.4 out of 5 from 1 client review.
Areas of practice
Practice areas handled by William Owen Hennessey
William concentrates on ip. Each area below outlines the kind of case William handles, typical outcomes to expect, and how the intake process starts.
IP cases in Concord, New Hampshire
William takes ip matters in Concord, New Hampshire. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before William agrees to represent you.
Biography
About William Owen Hennessey — Over 39 years of New Hampshire ip experience
William Owen Hennessey is a prof. of law based in Concord, NH. The practice focuses on IP. William has over 39 years of legal experience. Rated 4.4 out of 5 from 1 client review.
William Owen Hennessey is a lawyer practicing intellectual property. William Owen received a A.B. degree from Brown University in 1968, and has been licensed for 39 years. William Owen practices in Concord, NH.
How William handles ip matters
William Owen Hennessey is a lawyer practicing intellectual property. William Owen received a A.B. degree from Brown University in 1968, and has been licensed for 39 years. William Owen practices in Concord, NH.
Who William represents
William reviews new inquiries case-by-case for ip matters in Concord and the surrounding New Hampshire area.
Credentials
William Owen Hennessey's legal education and bar admissions
Franklin Pierce Law Center
J.D. · 1986
Brown University
A.B. University · 1968
Jurisdictions
William's state bar admissions
U.S. Court of Intern
1988 · ACTIVE
New Hampshire
1987 · ACTIVE
U.S. District Court,
1987 · ACTIVE
William studied at J.D. in Franklin Pierce Law Center and A.B. University in Brown University.
Law school and academic background
William completed J.D. in Franklin Pierce Law Center and A.B. University in Brown University. Formal legal training is one signal of substantive knowledge — the day-to-day practice William runs in New Hampshire is where that training gets applied to real client questions.
Recognition
Awards, publications, and recognition of William Owen Hennessey
William has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
BV Distinguished
Legal awards and honors
BV Distinguished.
Locations
William Owen Hennessey's office in Concord
William's primary office is at 2 White Street, Concord, NH, 03301. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of William Owen Hennessey — 4.4/5 rating from 1 verified client review
Every review below is from a verified client of William. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing ip attorneys in Concord.
4.4
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once William Owen Hennessey claims this profile.
Read all reviewsHiring guide
How to hire William Owen Hennessey — what to expect in your first consultation
Working with a new ip attorney should feel structured. Here's how the first two conversations with William usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
William charges for the initial consult. That fee is credited toward representation if you retain William'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; William will tell you what matters and what doesn't.
Questions to ask a ip attorney in Concord, New Hampshire
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 William
William 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. William confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
William'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 William Owen Hennessey
How much does it cost to hire William for a ip case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. William walks through the likely range during the consult so there are no surprises.
Does William offer a free consultation?
William charges for the initial consult; that fee is credited toward representation if you retain William's office. Some ip attorneys offer free consults — check William's current terms during booking.
How long do ip cases in New Hampshire 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. William gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can William take my case if I'm outside Concord?
William is licensed in New Hampshire. Matters governed by New Hampshire law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — William 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 William?
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. William will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is William accepting new ip clients right now?
William'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 Concord, Manchester and Portsmouth in New Hampshire
William handles ip matters throughout New Hampshire. 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 New Hampshire
If William's intake is full or the fit isn't right, these ip attorneys in Concord handle similar matters. Every profile below is verified and open to consultations.

Nathaniel Adam Wickliffe, J.D./LL.M. M.B.A.
Manchester, New Hampshire
5.0· 3

Sari Ann Strasburg
Bedford, New Hampshire
5.0· 2

W. Wright Danenbarger
Manchester, New Hampshire
5.0· 1

Edward A. Haffer
Manchester, New Hampshire
5.0· 1

David K. Fries
Concord, New Hampshire
5.0· 1

Arnold Rosenblatt
Manchester, New Hampshire
5.0· 1