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

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

Alexa M. Johnston
Partner

Alexa advises clients on all aspects of intellectual property law, focusing on patents and trademarks. With a strong bioengineering background, she leverages her expertise in science and law to help clients maximize the value of their intellectual property across industries such as mechanical and electromechanical devices, medical devices, diagnostics, manufacturing processes, and consumer products.

View all attorneys

News

Chambers USA 2025 Awards Klarquist Top-Tier Recognition Klarquist Recognized as Top Oregon Patent Law Firm in 2025 IAM Patent 1000 Ingenico v. Ioengine VIEW KLARQUIST NEWS VIEW FEDERAL CIRCUIT IP BLOG