John Duffey
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John Duffey Email & Phone Number

Business Litigation Attorney at Maslon LLP
Location: Greater Minneapolis-St. Paul Area, United States 1 work role 2 schools
1 work email found @maslon.com LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email j****@maslon.com
LinkedIn Profile matched
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Current company
Role
Business Litigation Attorney
Location
Greater Minneapolis-St. Paul Area, United States
Company size

Who is John Duffey? Overview

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Quick answer

John Duffey is listed as Business Litigation Attorney at Maslon LLP, a with 123 employees, based in Greater Minneapolis-St. Paul Area, United States. AeroLeads shows a work email signal at maslon.com and a matched LinkedIn profile for John Duffey.

John Duffey holds J.D., Cum Laude from University Of Michigan Law School.

Company email context

Email format at Maslon LLP

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{first}.{last}@maslon.com
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AeroLeads found 1 current-domain work email signal for John Duffey. Compare company email patterns before reaching out.

Profile bio

About John Duffey

I represent clients in complex commercial litigation matters, including business torts and contract disputes, with a particular emphasis on noncompete, trade secret, and indenture trustee litigation. I help clients navigate all stages of the litigation process, and I have significant experience representing large and small businesses in all forums: federal and state courts, arbitrations, and mediations.

Listed skills include Litigation, Business Litigation, Appeals, Legal Writing, and 3 others.

Current workplace

John Duffey's current company

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Maslon LLP
Maslon Llp
Business Litigation Attorney
minneapolis, minnesota, united states
Website
Employees
123
AeroLeads page
1 role

John Duffey work experience

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  • Maslon Llp
    Business Litigation Attorney
    Sep 2011 - Present - Minneapolis, Mn
    I represent companies and individuals in complex commercial litigation matters, including business torts and contract disputes, with a particular emphasis on noncompete and trade secret litigation. Representative Matters and Experience:* Obtained multimillion-dollar judgment for regional accounting firm in noncompete dispute with former partner and successfully defended that judgment on appeal;* Secured TROs and preliminary injunctions for medical device manufacturer in actions to enforce noncompetes and other restrictive covenants;* Represented dental practice management company with respect to breach of contract and breach of fiduciary duty claims brought in multiple states; and * Managed e-discovery and related issues in numerous federal and state court actions.
Team & coworkers

Colleagues at Maslon LLP

Other employees you can reach at maslon.com. View company contacts for 123 employees →

2 education records

John Duffey education

J.D., Cum Laude

Editor-in-Chief, University of Michigan Journal of Law Reform Jeffrey S. Lehman Legal Practice Award Sarah Honigman Memorial Award

FAQ

Frequently asked questions about John Duffey

Quick answers generated from the profile data available on this page.

What company does John Duffey work for?

John Duffey works for Maslon LLP.

What is John Duffey's role at Maslon LLP?

John Duffey is listed as Business Litigation Attorney at Maslon LLP.

What is John Duffey's email address?

AeroLeads has found 1 work email signal at @maslon.com for John Duffey at Maslon LLP.

Where is John Duffey based?

John Duffey is based in Greater Minneapolis-St. Paul Area, United States while working with Maslon LLP.

What companies has John Duffey worked for?

John Duffey has worked for Maslon Llp.

Who are John Duffey's colleagues at Maslon LLP?

John Duffey's colleagues at Maslon LLP include Nathaniel Ajouri, Mindy Sweeney, Barry Gersick, Erin Snyder, and Matthew Frerichs.

How can I contact John Duffey?

You can use AeroLeads to view verified contact signals for John Duffey at Maslon LLP, including work email, phone, and LinkedIn data when available.

What schools did John Duffey attend?

John Duffey holds J.D., Cum Laude from University Of Michigan Law School.

What skills is John Duffey known for?

John Duffey is listed with skills including Litigation, Business Litigation, Appeals, Legal Writing, Commercial Litigation, Civil Litigation, and Legal Research.

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