John Posthumus
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John Posthumus Email & Phone Number

Technology/Brand lawyer with more than 27 years of experience litigating complex intellectual property disputes at Polsinelli
Location: Denver, Colorado, United States 6 work roles 3 schools
1 work email found @polsinelli.com 3 phones found area 303 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 3 phones

Work email j****@polsinelli.com
Direct phone (303) ***-****
LinkedIn Profile matched
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Current company
Role
Technology/Brand lawyer with more than 27 years of experience litigating complex intellectual property disputes
Location
Denver, Colorado, United States
Company size

Who is John Posthumus? Overview

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Quick answer

John Posthumus is listed as Technology/Brand lawyer with more than 27 years of experience litigating complex intellectual property disputes at Polsinelli, a company with 1711 employees, based in Denver, Colorado, United States. AeroLeads shows a work email signal at polsinelli.com, phone signal with area code 303, and a matched LinkedIn profile for John Posthumus.

John Posthumus previously worked as Shareholder at Polsinelli and Shareholder at Sheridan Ross, P.C.. John Posthumus holds Jd, Law from Unh Franklin Pierce School Of Law.

Company email context

Email format at Polsinelli

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{first_initial}{last}@polsinelli.com
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AeroLeads found 1 current-domain work email signal for John Posthumus. Compare company email patterns before reaching out.

Profile bio

About John Posthumus

John has a national reputation for efficiently handling IP litigation matters, including jury and bench trials in federal courts across the U.S. He represents national and international companies in cases involving violations of patent, trademark, copyright and trade secrets. He is a lead enforcement counsel in trademark and unfair competition matters for an international real estate company. John also advises clients and transactional attorneys on IP matters in mergers and acquisitions, employment disputes and licensing negotiations, as well as provides strategic advice on intellectual property portfolio development and management.Specialties: Intellectual property litigation (including patents, trademarks, unfair competition, false/misleading advertising, copyrights and trade secrets) Trial practice Attorney/client privilege issues and work product discovery issues Electronic discovery Advertising and trademark clearance Technology licensing Media and entertainment

Listed skills include Patent Law, Intellectual Property, Trademarks, Patent Litigation, and 4 others.

Current workplace

John Posthumus's current company

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Polsinelli
Polsinelli
Technology/Brand lawyer with more than 27 years of experience litigating complex intellectual property disputes
kansas city, missouri, united states
Website
Employees
1711
AeroLeads page
6 roles

John Posthumus work experience

A career timeline built from the work history available for this profile.

Shareholder

Current

Greater Denver Area

I focus on complex intellectual property litigation for high profile clients. I have represented numerous clients in a wide range of cases involving patent infringement claims on a variety of technologies and products including computer hardware and software, telecommunications, consumer electronics, the Internet, wireless technologies, e-commerce, and.

Mar 2018 - Present
Team & coworkers

Colleagues at Polsinelli

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3 education records

John Posthumus education

FAQ

Frequently asked questions about John Posthumus

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

What company does John Posthumus work for?

John Posthumus works for Polsinelli.

What is John Posthumus's role at Polsinelli?

John Posthumus is listed as Technology/Brand lawyer with more than 27 years of experience litigating complex intellectual property disputes at Polsinelli.

What is John Posthumus's email address?

AeroLeads has found 1 work email signal at @polsinelli.com for John Posthumus at Polsinelli.

What is John Posthumus's phone number?

AeroLeads has found 3 phone signal(s) with area code 303 for John Posthumus at Polsinelli.

Where is John Posthumus based?

John Posthumus is based in Denver, Colorado, United States while working with Polsinelli.

What companies has John Posthumus worked for?

John Posthumus has worked for Polsinelli, Sheridan Ross, P.C., Greenberg Traurig, Leboeuf, Lamb, Greene & Macrae, Llp, and Holme, Roberts & Owen.

Who are John Posthumus's colleagues at Polsinelli?

John Posthumus's colleagues at Polsinelli include Samantha Schoonover, Elizabeth Earl Bray, Meredith Duncan, Logan Moore, and Juan Zazueta.

How can I contact John Posthumus?

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

What schools did John Posthumus attend?

John Posthumus holds Jd, Law from Unh Franklin Pierce School Of Law.

What skills is John Posthumus known for?

John Posthumus is listed with skills including Patent Law, Intellectual Property, Trademarks, Patent Litigation, Copyright Law, Litigation, Trade Secrets, and Licensing.

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