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 Microsoft FDA American Express Dexcom Taylor Made NIH
Representative list

Protecting your Innovation.
It’s what we do.

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

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 Welcomes Alexa Johnston as New Partner in 2025 January 22nd: PDX Women in Tech & Law x AIPLA Community Event Klarquist Files Amicus Brief in EcoFactor v. Google, For En Banc Consideration at the Federal Circuit VIEW KLARQUIST NEWS VIEW FEDERAL CIRCUIT IP BLOG