Trusted by the Most Innovative Companies
in the World

Klarquist is a proven intellectual law firm for science and technology companies looking to creatively protect and defend their ideas.

We understand the law, the science, and most importantly the client.

That’s
why we’re
known for the
clients we Keep®:

Amazon Nautilus FDA American Express Dexcom Taylor Made NIH
Representative list

Protecting your Innovation.
It’s what we do.

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Haendler, Jeffrey
Jeffrey Haendler
Partner
B.S., Mechanical Engineering
Jie Lian
Associate
Ph.D., Bioengineering
Michael Loy
Associate
M.S., Manufacturing Engineering
Ziyu Ma
Associate
M.Sc., Nutrition & Rural Development
Sheree Rybak
Partner
Ph.D., Biological Sciences
Caitlin Potter
Patent Agent
B.S., Electrical Engineering
Deakin Lauer
Partner
B.S., Mechanical Engineering
Hayes, Kevin
Kevin Hayes
Partner
B.S., Natural Science
Lawrence Furan
Patent Agent
B.A., Chemistry
Greg Scott
Partner
Ph.D., Neuroscience
Xiang Li
Associate
M.S., Applied Biosciences & Biotechnology
Brandon Johnson
Partner
B.S., Integrated Engineering
Robert Scotti
Partner
B.S., Electrical Engineering
Haspel, Amy
Amy Haspel
Patent Agent
B.S., Electrical Engineering
Jodi Connolly
Senior Patent Agent
Ph.D., Microbiology & Immunology
Todd Siegel
Partner
B.S., Industrial Engineering
John Schmitz
Associate
B.S., Nuclear Engineering
McKenna Park
Trademark Associate
B.A., Communications & News Media
Johanna Schwartz
Partner
Ph.D., Organic Chemistry
Michael Jones
Partner
Ph.D., Applied Physics
Sam Thacker
Associate
B.S., Brain and Cognitive Sciences
Andy Mason
Partner
B.S., Electrical Engineering
Girard, Mike
Mike Girard
Partner
B.S., Mechanical Engineering
Wayne Rupert
Partner
B.S., Chemical Engineering
Roy Chamcharas
Partner
B.S., Chemical Engineering
Sarah Jelsema
Counsel
B.S., Biology
Jeffrey Love
Partner
B.A., Philosophy
Alexa Johnston
Associate
B.S., Bioengineering
Handly, Erika
Erika Handly
Technical Consultant
Ph.D., Biological Engineering
Burgess, Steven
Steven Burgess
Senior Patent Agent
Ph.D., Chemistry
Cleveland, Kristin
Kristin Cleveland
Partner
B.A., Economics
Greg Maurer
Partner
B.S., Computer Science
Dachtler, Amy
Amy Dachtler
Staff Attorney
B.S., Chemical Engineering
Desmond, Caroline
Caroline Desmond
Associate
B.S., Advertising
Hamm, Klaus
Klaus Hamm
Partner
B.A., American Studies
Grellmann, Carsten
Carsten Grellmann
Partner
B.S., Mechanical Engineering
Frei, Ryan
Ryan Frei
Partner
Ph.D., Biochemistry
Heck, Ryan
Ryan Heck
Senior Counsel
Ph.D., Chemistry
Caitlin Thireault
Associate
M.S., Cell & Molecular Biology
Ethan McGrath
Partner
M.S., Applied Physics
John Vandenberg
Partner
B.S.E., Mechanical & Aerospace Engineering
Becca Schewe-Mott
Patent Agent
Ph.D., Biomedical Engineering
Julia Kottmeier
Patent Agent
M.S., Molecular Biology
Joe Jakubek
Partner
B.E., Chemical Engineering
Mark Wilson
Partner
B.S., Electrical & Computer Engineering
Ian Pilgrim
Patent Agent
Ph.D., Physics
Davis, Scott
Scott Davis
Partner
M.S., Chemistry
Frank Morton-Park
Associate
M.A., Physics
Derrick Toddy
Partner
B.S., Philosophy & Literature

We have a deep understanding
of the law.

Our legal knowledge runs deep.

In fact, we wrote the book on Patent Defenses.

Klarquist launched and maintains Patent Defenses, a unique, mobile-friendly legal research tool for businesses and individuals to find information about possible defenses to patent infringement claims under U.S. law.

Search a term or keyword

Patent Defense’s search feature can be used to find detailed information on specific subject matters, such as “double patenting,” “exhaustion,” or even case names.

Browse topics of interest

Patent Defenses is organized into easy-to-navigate sections. Simply select a category to learn more about subjects, such as “novelty” and “obviousness.”

Explore recent case highlights

Short summaries of selected substantive patent law Federal Circuit decisions can be found here, and these decisions are updated frequently.

Patent Defenses

Attorney Spotlight

Caitlin Thireault
Associate

M.S., Cell & Molecular Biology

B.S., BioResource Research

Caitlin’s practice focuses on biotechnology patent prosecution. She has particular expertise in cell and molecular biology and plant science. Her scientific curiosity and flair for critical analysis offers the perfect blend for intellectual property law, where each day brings new technologies and unique challenges to overcome.

View all attorneys

News

Klarquist Joins the Minority Corporate Counsel Association Klarquist Achieves Mansfield Rule Certification for 2023–2024 Klarquist Attorneys Recognized in Best Lawyers in America® 2025 Edition VIEW KLARQUIST NEWS VIEW FEDERAL CIRCUIT IP BLOG