Matthew Clausen Mousley

Matthew Clausen Mousley, IP Attorney in Philadelphia, Pennsylvania

Over 22 years of legal practice

PartneratDuane Morris LLP

Philadelphia, PA

Practicing ip in Philadelphia since 2004.

22+
Years practicing
2
Bar admissions

Practices in

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Quick answer

Matthew Clausen Mousley is a partner based in Philadelphia, PA. The practice focuses on IP. Matthew has over 22 years of legal experience. Currently practicing at Duane Morris LLP.

Based in
Philadelphia, PA
Experience
over 22 years
Known for
IP
  • Handles IP matters from Philadelphia, PA.
  • Over 22 years of practice as a licensed attorney.

About Matthew Clausen Mousley: Matthew Clausen Mousley is a partner based in Philadelphia, PA. The practice focuses on IP. Matthew has over 22 years of legal experience. Currently practicing at Duane Morris LLP.

Areas of practice

Practice areas handled by Matthew Clausen Mousley

Matthew concentrates on ip. Each area below outlines the kind of case Matthew handles, typical outcomes to expect, and how the intake process starts.

IP cases in Philadelphia, Pennsylvania

Matthew takes ip matters in Philadelphia, Pennsylvania. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Matthew agrees to represent you.

Biography

About Matthew Clausen Mousley — Over 22 years of Pennsylvania ip experience

Matthew Clausen Mousley is a partner based in Philadelphia, PA. The practice focuses on IP. Matthew has over 22 years of legal experience. Currently practicing at Duane Morris LLP.

Matthew Clausen Mousley is a lawyer practicing intellectual property, intellectual property litigation. Matthew received a B.A. degree from Franklin & Marshall College in 2001, and has been licensed for 22 years. Matthew practices at Duane Morris LLP in Philadelphia, PA.

Working with Matthew on a ip matter

Matthew Clausen Mousley is a lawyer practicing intellectual property, intellectual property litigation. Matthew received a B.A. degree from Franklin & Marshall College in 2001, and has been licensed for 22 years. Matthew practices at Duane Morris LLP in Philadelphia, PA.

Who Matthew represents

Matthew reviews new inquiries case-by-case for ip matters in Philadelphia and the surrounding Pennsylvania area.

Credentials

Matthew Clausen Mousley's legal education and bar admissions

  • Villanova University School of Law

    J.D. · 2004

  • Franklin & Marshall College

    B.A. · 2001

Jurisdictions

Matthew's state bar admissions

  • Pennsylvania

    2004 · ACTIVE

  • New Jersey

    2004 · ACTIVE

Matthew studied at J.D. in Villanova University School of Law and B.A. in Franklin & Marshall College.

Law school and academic background

Matthew completed J.D. in Villanova University School of Law and B.A. in Franklin & Marshall College. Formal legal training is one signal of substantive knowledge — the day-to-day practice Matthew runs in Pennsylvania is where that training gets applied to real client questions.

Affiliations

Matthew's professional memberships and bar associations

  • Professional Activities •International Technology Law Association - ITechLaw (formerly Computer Law Association) - Board of Directors, 2011-present - Vice-chair of Membership committee, 2012-present - Editor of E-Newsletter, 2010-2012 - U

    membership

  • S

    membership

Locations

Matthew Clausen Mousley's office in Philadelphia

Matthew's primary office is at 30 South 17th Street, Philadelphia, PA, 19103. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Duane Morris LLP

30 South 17th Street

Philadelphia, PA 19103

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Client feedback

Client reviews of Matthew Clausen Mousley

Matthew has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.

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Hiring guide

How to hire Matthew Clausen Mousley — what to expect in your first consultation

Working with a new ip attorney should feel structured. Here's how the first two conversations with Matthew usually go, from the moment you request a consult to the day representation begins.

Consultation formats and pricing

Matthew charges for the initial consult. That fee is credited toward representation if you retain Matthew'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; Matthew will tell you what matters and what doesn't.

Questions to ask a ip attorney in Philadelphia, Pennsylvania

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 Matthew

Matthew 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. Matthew confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

Matthew'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 Matthew Clausen Mousley

  • How much does it cost to hire Matthew for a ip case?

    Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Matthew walks through the likely range during the consult so there are no surprises.

  • Does Matthew offer a free consultation?

    Matthew charges for the initial consult; that fee is credited toward representation if you retain Matthew's office. Some ip attorneys offer free consults — check Matthew's current terms during booking.

  • How long do ip cases in Pennsylvania 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. Matthew gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can Matthew take my case if I'm outside Philadelphia?

    Matthew is licensed in Pennsylvania. Matters governed by Pennsylvania law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Matthew 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 Matthew?

    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. Matthew will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is Matthew accepting new ip clients right now?

    Matthew'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 Philadelphia, Pittsburgh and Harrisburg in Pennsylvania

Matthew handles ip matters throughout Pennsylvania. Each city below is a direct link into the search page for verified ip attorneys in that community.

More counsel

If Matthew's intake is full or the fit isn't right, these ip attorneys in Philadelphia handle similar matters. Every profile below is verified and open to consultations.