Careers

Diversity

With 17 offices, from New York to Los Angeles and Seattle to Orlando, we live and work in communities all over the U.S., collaborating across locations, disciplines and even borders. Our experienced, highly ranked lawyers serve businesses wherever they are and wherever they want to go.

Offices

About Us

Pages

Professionals

Thought leadership: blogs, podcasts, videos, publications, events and news

Insights

Services

Pro Bono

Am Law 100 firm with practices in Business, Digital Assets and Data Management, Intellectual Property, Labor & Employment, Litigation and Tax.

Home | BakerHostetler

James Sherer Comments on Client Questions Post-Election in Law.com and The Recorder Articles

Peter Roskam and BakerHostetler’s Post-Election Webinar Mentioned in Articles on Trump’s Second Administration

Michael Snarr Comments on Tariffs and Trade Under New Administration

Sarah La Voi, Lauren Bass Pen Article for The Licensing Journal on Morals Clause

As a result, David is able to provide advice and strategies to prosecution clients that lead to patents that can withstand the scrutiny of litigation or – better yet – enable clients to avoid litigation altogether.

core/freeform

J.D., The Pennsylvania State University - Dickinson Law, 1997, 

B.S., Chemistry, Clemson University, 1994, 

<ul>
<li>Chambers USA: Intellectual Property in Pennsylvania
<ul>
<li>Band 4 (2024)</li>
</ul>
</li>
<li>The Legal 500 United States
<ul>
<li>Intellectual Property: Patents: Prosecution (including re-examination and post-grant proceedings) (2017 to 2018, 2022, 2024)</li>
</ul>
</li>
<li>Pennsylvania Super Lawyers &#8220;Rising Star&#8221; (2006)</li>
<li>IAM Patent 1000: The World&#8217;s Leading Patent Practitioners
<ul>
<li>Pennsylvania: Recommended for Patent Prosecution (2024)</li>
</ul>
</li>
</ul>


Philadelphia

BakerHostetler attorneys, practice areas stand out in The Legal 500 annual guide

Chambers USA Guide 2024 Recognizes 155 BakerHostetler Attorneys and ­66 Practice Areas

BakerHostetler Attorneys, Practice Areas Shine in The Legal 500 2022 Guide

BakerHostetler Boosts High Marks in the Legal 500 2018 Annual Guide

Intellectual Property

IP Life Sciences and Advanced Materials

Compliance

Industries

Life Sciences

Design Patent Protection

Patent Prosecution

<h5>Patent Prosecution and Transactional Experience</h5>
<ul>
<li>Manages various patent portfolios for major corporations directed to, for example, pharmaceutical drugs, medical devices and industrial chemicals.</li>
<li>Prepares and prosecutes patent applications in the chemical and mechanical arts before the USPTO and internationally.</li>
<li>Analyzes validity and infringement issues and conducts due diligence activities in various technology fields, including pharmaceuticals, medical devices, polymer chemistry, metal alloys, blood glucose monitoring, biomaterials, imaging, adhesives, plumbing devices and absorbent consumer products.</li>
<li>Drafts and argues appeals before the Patent Trial and Appeal Board (PTAB).</li>
<li>Prepares and reviews, and advises clients regarding, intellectual property provisions of licensing and acquisition agreements.</li>
<li>Provides advice on patent life cycle management, including patent term extension and patent term adjustment.</li>
<li>Assesses clinical trial activities and results for potential new inventions.</li>
<li>Provides advice on the impact of the judicially created doctrine of obviousness-type double patenting on pharmaceutical patent portfolios.</li>
</ul>
<h5>Post-Grant Proceedings in the USPTO</h5>
<ul>
<li>Serves as counsel in <em>ex parte</em> and <em>inter partes</em> re-examination proceedings regarding nutritional beverages, dietary supplements and polymeric casings for electronic devices.</li>
<li>Serves as counsel in <em>inter partes</em> review proceedings regarding pharmaceutical drugs, dietary supplements and chemical additives.</li>
</ul>
<h5>Litigation Experience</h5>
<ul>
<li>Played a central role in a one-month jury trial with a verdict that resulted in a $70 million settlement for the client. Technology involved methods and apparatus for the drying of semiconductor wafers after pre-diffusion cleaning. That trial and others, some of which have reached the appellate level, provided valuable experience on how best to position one&#8217;s intellectual property to maximize value and enforceability.</li>
<li>Obtained a finding of noninfringement for a pharmaceutical client in a multiple-defendant litigation involving an assertion of four patents relating to administration of hepatitis B vaccines.</li>
<li>Represented major pharmaceutical corporations in patent infringement cases directed to surgical stapler technology, electrochemical test strips for the treatment of diabetes and absorbent consumer products.</li>
<li>Represents clients in actions against the USPTO related to administrative law and statutory interpretation of the patent laws. In one district court action, obtained an additional patent term adjustment for a pharmaceutical drug patent.</li>
</ul>


David N. Farsiou

David N. Farsiou

Experience

Recognitions and Memberships

Insights and News

Prior Positions

Credentials

Community and Pro Bono

Areas of Focus

Industries

Services

Featured Insights