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Home - Merchant & Gould P.C.

The intellectual property attorneys in Merchant &amp; Gould’s Pharmaceutical, Chemical &amp; Life Sciences Group are capable of addressing your legally and/or technologically complex issues.

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As a group, we provide the highest quality intellectual property (IP) services related to pharmaceuticals, industrial chemistry, biotechnology, materials science, and related disciplines.

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Service Based on Legal, Business &amp; Technical Experience

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Our clients entrust us to handle their complex IP needs because of our legal, business, and technical experience.

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Our group has extensive experience in the following areas:

Patenting: Preparing and prosecuting national and international applications

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Opining: Opinions related to patentability, non-infringement, and invalidity

Counseling: Due diligence, patent evaluation, and freedom-to-operate determinations

Litigating: Hatch-Waxman cases and post-grant proceedings, including inter partes reviews

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We also have extensive experience in transactional matters, including agreements related to licensing, settlement, and joint research. Our clients rely on our knowledge related to pharmaceutical and FDA law to develop and market products in the United States.

We recognize that successfully navigating the complex patent landscape requires understanding the risks and benefits of our clients’ businesses. We take time to understand our clients to better understand the environments in which they make decisions. This approach helps us advise our clients and be more complete partners in their businesses.

We have technical experience in the following areas: biochemistry, biology, chemistry, chemical engineering, electrochemistry, genetics, medicine, pharmacology, among others. This experience is based on undergraduate and/or graduate degrees, as well as careers in industry.

The combined legal, business, and technical experience enables our group to devise strategies that serve our clients’ business goals. We implement creative solutions to address complex problems.

At Merchant &amp; Gould, we serve numerous clients from diverse technological areas, including:

<a href="/Industries/Food-Beverage">Food and beverage</a>

<a href="/Industries/Medical-Devices">Medical devices and diagnostics </a>

<a href="http://Pharmaceuticals">Ph</a><a href="https://www.merchantgould.com/industries/pharmaceuticals/">armaceuticals</a>

Atlanta

Partner

Jeffrey D. Blake

Washington, D.C. Area

Of Counsel

B. Jefferson Boggs

Minneapolis

Associate

Bridget Carmichael

Eric R. Chad

Denver

Kelsey K. Covert, P.E.

Dennis R. Daley

Joseph W. Dubis, Ph.D.

Michael A. Erbele

Daniel R. Evans, Ph.D.

Ryan J. Fletcher, Ph.D.

Kristen M. Souther

New York

Peter A. Gergely

E. Joseph Gess

Joshua  A. Hartman

Melissa M. Hayworth

Patent Agent

Marina I. Heusch, Ph.D.

Thomas R. Johnson

Jeffrey D. Klenc, Ph.D.

Heather  B. Kroona, Ph.D.

Andrew O. Larsen, Ph.D.

George C. Lewis, P.E.

Intellectual Property Paralegal

Donna L. Lizama

Anneliese  S. Mayer

Elisabeth “Bette”  S. Muirhead

Senior Counsel

Tarik M. Nabi, Ph.D.

Todd J. Obijeski

Peter S. Selness

Christopher  J. Sorenson

Sophia I. Vogeler

Jason M. Wiener

Erin E. Herdeman

Payton Li Remick

Attorney

Sarah ML Wilkening, Ph.D.

Alana L. LeFebvre

Heather S. Chatterton

Daniel J. Pereira, Ph.D.

Katherine F. K. Mares

Alexander E. Zumbulyadis

<h2 class="wp-block-heading">Five new hires bring decades of experience, leadership and innovation</h2>



Merchant &amp; Gould welcomes Daniel J. Pereira, Ph.D., John S. Kern, Eric W. Schweibenz, and Donald R. McPhail, as Partners and Alexander B. Englehart, as Of Counsel in its Washington D.C. Area office. The new additions will expand Merchant &amp; Gould’s capabilities in handling International Trade Commission (ITC) cases, complex IP litigation, post-grant proceedings, patent prosecution, and strategic IP portfolio management, as well as increase its presence in Japan, China, Taiwan and Korea.



“We are continually investing in serving our client base worldwide, and this group will deepen our bench nationally and increase our existing presence in Japan, China, Taiwan and Korea,” said Heather Kliebenstein, Managing Director and Partner at Merchant &amp; Gould. “Each of these experienced attorneys brings the right cross-culture experience and technical background that we want at Merchant &amp; Gould.”



All five hires look forward to continuing their work in the D.C. area, serving clients worldwide. Merchant &amp; Gould’s long-standing reputation for stability, creative legal solutions, collaboration and technologically advanced systems attracted the latest hires.&nbsp;



“Transitioning to Merchant &amp; Gould was the right move for us and our clients. We are excited to join such a dynamic firm that has superior technical strength, advanced internal systems and processes, extensive trial experience, and breadth of knowledge in all areas of intellectual property,” said Pereira. Dr. Pereira most recently served as the Managing Partner and previously led the Chemical Practice Group at Oblon. Mr. Kern and Mr. Schweibenz formerly led the Electrical/Mechanical and Litigation Practice Groups, respectively.



One of the oldest full-service intellectual property and trial law firms in America, Merchant &amp; Gould evolves with technology, just like its client base. Through harnessing and pioneering advanced legal solutions, they have established themselves as an indispensable partner in delivering exceptional legal guidance and service to their clients.



“When we look to add new talent to our team at Merchant &amp; Gould, we want to find people who have the right mindset — forward-thinking, collaborative and client-focused,” Kliebenstein shared. “Each of these attorneys embodies those values and will carry our firm’s legacy forward.”

Strategic Power Move: Merchant & Gould Lures Quintet of Highly-Experienced Attorneys to Supercharge DC Office and Accelerate Asia Expansion

Merchant &amp; Gould is pleased to announce that the following attorneys have been included in&nbsp;The Best Lawyers in America©&nbsp;2025.



Best Lawyers compiles lists of outstanding attorneys by conducting peer-reviewed surveys in which lawyers confidentially evaluate their colleagues. Since lawyers are not permitted to purchase their rankings or pay a fee to participate, a Best Lawyers listing is considered an unbiased honor.



Atlanta, GA



<ul>
<li>Jeffrey D. Blake 
<ul>
<li>Patent Law</li>
</ul>
</li>
</ul>



Minneapolis, MN



<ul>
<li>John A. Clifford 
<ul>
<li>Advertising Law</li>



<li>Litigation &#8211; Intellectual Property</li>



<li>Patent Law</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Andrew S. Ehard 
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Thomas R. Johnson 
<ul>
<li>Advertising Law</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>



<li>Scott W. Johnston 
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Heather J. Kliebenstein 
<ul>
<li>Litigation &#8211; Intellectual Property</li>
</ul>
</li>



<li>Thomas J. Leach 
<ul>
<li>Litigation &#8211; Intellectual Property</li>
</ul>
</li>



<li>Brent E. Routman 
<ul>
<li>Advertising Law</li>
</ul>
</li>



<li>Christopher J. Schulte 
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>



<li>William D. Schultz 
<ul>
<li>Litigation &#8211; Intellectual Property</li>
</ul>
</li>



<li>Christopher J. Sorenson 
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>



<li>Anthony R. Zeuli 
<ul>
<li>Copyright Law</li>



<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>



<li>Patent Law</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Rachel Zimmerman Scobie 
<ul>
<li>Litigation &#8211; Intellectual Property</li>
</ul>
</li>
</ul>



New York, NY



<ul>
<li>Peter A. Gergely 
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>
</ul>



Alexandria, VA



<ul>
<li>John S. Kern 
<ul>
<li>Litigation &#8211; Patent</li>



<li>Patent Law</li>
</ul>
</li>



<li>Daniel J. Pereira 
<ul>
<li>Biotechnology and Life Sciences Practice</li>



<li>Patent Law</li>
</ul>
</li>



<li>Eric W. Schweibenz 
<ul>
<li>Patent Law</li>
</ul>
</li>
</ul>

Merchant & Gould Attorneys Recognized by Best Lawyers® in 2025 in America.

Merchant &amp; Gould is pleased to announce that the following attorneys have been included in&nbsp;The Best Lawyers in America©&nbsp;2022.



Best Lawyers&nbsp;compiles lists of outstanding attorneys by conducting peer-reviewed surveys in which lawyers confidentially evaluate their colleagues. Since lawyers are not permitted to purchase their rankings or pay a fee to participate, a&nbsp;Best Lawyers&nbsp;listing is considered an unbiased honor.



Atlanta, GA



<ul>
<li>Jeffery D. Blake
<ul>
<li>Patent Law</li>
</ul>
</li>
</ul>



Minneapolis, MN



<ul>
<li>John A. Clifford
<ul>
<li>Litigation- Intellectual Property</li>



<li>Patent Law</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Andrew S. Ehard
<ul>
<li>Litigation- Intellectual Property</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Scott W. Johnston


<ul>
<li>Litigation- Intellectual Property, </li>
</ul>



<ul>
<li>Trademark Law</li>
</ul>
</li>



<li>Heather J Kliebenstein
<ul>
<li>Litigation- Intellectual Property </li>
</ul>
</li>



<li>Thomas J. Leach
<ul>
<li>Litigation- Intellectual Property</li>
</ul>
</li>



<li>Brent E. Routman
<ul>
<li>Advertising Law</li>
</ul>
</li>



<li>Christopher J. Schulte
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>



<li>William D. Schultz
<ul>
<li>Litigation &#8211; Intellectual Property</li>
</ul>
</li>



<li>Christopher J. Sorenson
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>



<li>Anthony R. Zeuli
<ul>
<li>Copyright Law</li>



<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>



<li>Patent Law</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Rachel Zimmerman Scobie
<ul>
<li>Litigation &#8211; Intellectual Property</li>
</ul>
</li>
</ul>



New York, NY



<ul>
<li>Peter A. Gergely
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>
</ul>

Merchant & Gould Attorneys Recognized by Best Lawyers® in 2022 in America.

Merchant &amp; Gould is pleased to announce that the following attorneys have been included in The Best Lawyers in America© 2023.



Best Lawyers&nbsp;compiles lists of outstanding attorneys by conducting peer-reviewed surveys in which lawyers confidentially evaluate their colleagues. Since lawyers are not permitted to purchase their rankings or pay a fee to participate, a&nbsp;Best Lawyers&nbsp;listing is considered an unbiased honor.



Atlanta, GA



<ul>
<li>Jeffery D. Blake
<ul>
<li>Patent Law</li>
</ul>
</li>
</ul>



Minneapolis, MN



<ul>
<li>John A. Clifford
<ul>
<li>Litigation- Intellectual Property</li>



<li>Patent Law</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Andrew S. Ehard
<ul>
<li>Litigation- Intellectual Property</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Scott W. Johnston




<ul>
<li>Litigation- Intellectual Property, </li>
</ul>



<ul>
<li>Trademark Law</li>
</ul>
</li>



<li>Heather J Kliebenstein
<ul>
<li>Litigation- Intellectual Property </li>
</ul>
</li>



<li>Thomas J. Leach
<ul>
<li>Litigation- Intellectual Property</li>
</ul>
</li>



<li>Brent E. Routman
<ul>
<li>Advertising Law</li>
</ul>
</li>



<li>Christopher J. Schulte
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>



<li>William D. Schultz
<ul>
<li>Litigation &#8211; Intellectual Property</li>
</ul>
</li>



<li>Christopher J. Sorenson
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>



<li>Anthony R. Zeuli
<ul>
<li>Copyright Law</li>



<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>



<li>Patent Law</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Rachel Zimmerman Scobie
<ul>
<li>Litigation &#8211; Intellectual Property</li>
</ul>
</li>
</ul>



New York, NY



<ul>
<li>Peter A. Gergely
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>
</ul>

Merchant & Gould Attorneys Recognized by Best Lawyers® in 2023 in America.

Merchant &amp; Gould is pleased to announce that the following attorneys have been included in&nbsp;The Best Lawyers in America©&nbsp;2024.



Best Lawyers&nbsp;compiles lists of outstanding attorneys by conducting peer-reviewed surveys in which lawyers confidentially evaluate their colleagues. Since lawyers are not permitted to purchase their rankings or pay a fee to participate, a&nbsp;Best Lawyers&nbsp;listing is considered an unbiased honor.



Atlanta, GA



<ul>
<li>Jeffery D. Blake
<ul>
<li>Patent Law</li>
</ul>
</li>
</ul>



Minneapolis, MN



<ul>
<li>John A. Clifford
<ul>
<li>Litigation- Intellectual Property</li>



<li>Patent Law</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Andrew S. Ehard
<ul>
<li>Litigation- Intellectual Property</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Scott W. Johnston






<ul>
<li>Litigation- Intellectual Property, </li>
</ul>



<ul>
<li>Trademark Law</li>
</ul>
</li>



<li>Thomas R. Johnson
<ul>
<li>Advertising Law</li>
</ul>
</li>



<li>Heather J Kliebenstein
<ul>
<li>Litigation- Intellectual Property </li>
</ul>
</li>



<li>Thomas J. Leach
<ul>
<li>Litigation- Intellectual Property</li>
</ul>
</li>



<li>Brent E. Routman
<ul>
<li>Advertising Law</li>
</ul>
</li>



<li>Christopher J. Schulte
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>



<li>William D. Schultz
<ul>
<li>Litigation &#8211; Intellectual Property</li>
</ul>
</li>



<li>Christopher J. Sorenson
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>



<li>Anthony R. Zeuli
<ul>
<li>Copyright Law</li>



<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>



<li>Patent Law</li>



<li>Trademark Law</li>
</ul>
</li>



<li>Rachel Zimmerman Scobie
<ul>
<li>Litigation &#8211; Intellectual Property</li>
</ul>
</li>
</ul>



New York, NY



<ul>
<li>Peter A. Gergely
<ul>
<li>Litigation &#8211; Intellectual Property</li>



<li>Litigation &#8211; Patent</li>
</ul>
</li>
</ul>

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