John Sopp
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John Sopp Email & Phone Number

Managing Director at Millen, White, Zelano & Branigan, P.C.
Location: Arlington, Virginia, United States 3 work roles 2 schools
2 work emails found @mwzb.com 1 phone found area 703 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 2 work emails · 1 phone

Work email s****@mwzb.com
Direct phone (703) ***-****
LinkedIn Profile matched
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Current company
Millen, White, Zelano & Branigan, P.C.
Role
Managing Director
Location
Arlington, Virginia, United States

Who is John Sopp? Overview

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Quick answer

John Sopp is listed as Managing Director at Millen, White, Zelano & Branigan, P.C., based in Arlington, Virginia, United States. AeroLeads shows a work email signal at mwzb.com, phone signal with area code 703, and a matched LinkedIn profile for John Sopp.

John Sopp previously worked as Patent Attorney at Keil & Weinkauf and Patent Examiner at Us Patent And Trademark Office. John Sopp holds Doctor Of Law (J.D.) from George Mason University School Of Law.

Company email context

Email format at Millen, White, Zelano & Branigan, P.C.

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{last}@mwzb.com
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AeroLeads found 2 current-domain work email signals for John Sopp. Compare company email patterns before reaching out.

Profile bio

About John Sopp

John Sopp is a Managing Director at Millen, White, Zelano & Branigan, P.C.. He possess expertise in patent prosecution, patents, chemistry, patent applications, life sciences and 19 more skills.

Listed skills include Patent Prosecution, Patents, Chemistry, Patent Applications, and 20 others.

Current workplace

John Sopp's current company

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Millen, White, Zelano & Branigan, P.C.
Millen, White, Zelano & Branigan, P.C.
Managing Director
3 roles · 35 years

John Sopp work experience

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

Managing Director

Current
Millen, White, Zelano & Branigan, P.C.

Arlington, Va

John Sopp is a Director who joined the firm in 1992 and has a strong background in all fields of chemistry and chemical engineering, with special expertise in pharmaceuticals and organic chemistry. As one of the firm’s three rotating managing partners, Mr. Sopp is partly responsible for daily management of the firm, for charting the direction of the firm and making decisions that have helped the firm grow and establish itself on a firm footing. Mr. Sopp focuses his practice on patent prosecution, client counseling on patent portfolio issues, opinions and U.S. Patent Office review procedures (e.g., Inter Partes and Post-Grant Reviews and Interferences). Much of his practice involves serving major pharmaceutical and chemical companies, both domestic and foreign, that are significant clients of the firm. Mr. Sopp finds it especially rewarding to advise clients on how to develop a successful portfolio of patents that will establish market power and protect them against potential competitors. This is especially valuable to clients in the pharmaceutical industry since, for example, generic-drug manufacturers often attempt to profit upon the advances made by innovating companies. Developing a successful portfolio for a pharmaceutical company also presents unique challenges due to the long time frame of protection required and potential high value even at the end of patent term. Mr. Sopp finds great satisfaction in analyzing an application in depth to find the real heart of the invention and in analyzing references in depth so as to distinguish a client’s invention from such references. This allows him to craft patent claims that will stand the test of time.

1992 - Present ~34 yrs 6 mos

Patent Attorney

Keil & Weinkauf

Washington D.C. Metro Area

Patent Attorney - Preparation and Prosecution of Chemistry and Chemical Engineering related Patents.

Oct 1988 - Oct 1992

Patent Examiner

Us Patent And Trademark Office

Washington D.C. Metro Area

Patent Examining and Searching in Chemistry-related Technologies

Jul 1984 - Oct 1988
2 education records

John Sopp education

FAQ

Frequently asked questions about John Sopp

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

What company does John Sopp work for?

John Sopp works for Millen, White, Zelano & Branigan, P.C..

What is John Sopp's role at Millen, White, Zelano & Branigan, P.C.?

John Sopp is listed as Managing Director at Millen, White, Zelano & Branigan, P.C..

What is John Sopp's email address?

AeroLeads has found 2 work email signals at @mwzb.com for John Sopp at Millen, White, Zelano & Branigan, P.C..

What is John Sopp's phone number?

AeroLeads has found 1 phone signal(s) with area code 703 for John Sopp at Millen, White, Zelano & Branigan, P.C..

Where is John Sopp based?

John Sopp is based in Arlington, Virginia, United States while working with Millen, White, Zelano & Branigan, P.C..

What companies has John Sopp worked for?

John Sopp has worked for Millen, White, Zelano & Branigan, P.C., Keil & Weinkauf, and Us Patent And Trademark Office.

How can I contact John Sopp?

You can use AeroLeads to view verified contact signals for John Sopp at Millen, White, Zelano & Branigan, P.C., including work email, phone, and LinkedIn data when available.

What schools did John Sopp attend?

John Sopp holds Doctor Of Law (J.D.) from George Mason University School Of Law.

What skills is John Sopp known for?

John Sopp is listed with skills including Patent Prosecution, Patents, Chemistry, Patent Applications, Life Sciences, Patent Portfolio Analysis, Biochemistry, and Patent Drafting.

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