Patent Defenses:
A Legal Research Tool by Klarquist

Patent Defenses is a unique legal research tool for businesses and individuals to find information about possible defenses to utility patent infringement claims under U.S. law.

This can be used to search Patent Defenses for a keyword or phrase. For example, search “double patenting,” “exhaustion,” or “Princo” (or other case name).

Ways to Use Patent Defenses

  1. search for a specific term or keyword
  2. browse topics of interest
  3. explore "recent case highlights"
Read more

Excelling in Patent Litigation By Developing Early Winning Strategies

Klarquist’s litigators excel at identifying and implementing winning strategies early, often achieving quick victories that reduce costs and enhance the value of the litigation success for our clients. Patent Defenses, our legal research tool, highlights our deep expertise in this area.

If you are looking for a firm that excels in patent litigation, contact us here.

Read more

Subscribe To PD Logo

Interested in receiving updates on patent law decisions?

Subscribe

Follow Us PD Logo

Follow Patent Defenses on Bluesky for quick updates.

See Bluesky

Redacted Areas of Patent Defenses

You may note that some areas in Patent Defenses are indicated as “redacted.” These areas contain confidential tips and strategies that are restricted to clients of the firm. If you are a client of the firm and would like access to the redacted confidential areas, please contact businessdevelopment@klarquist.com.

Disclaimer

Patent Defenses is a way for businesses and individuals to find information about possible defenses to utility patent infringement claims under U.S. law. Although prepared by a law firm, it does not constitute and is not a substitute for competent patent law advice from competent patent professionals. Among other things, the variability of the kinds of inventions to which patent law can apply and the different circumstances in which inventions are made and infringement claims are brought prevent any overview or analysis that would cover any and all specific circumstances. In addition, and even though we seek to update this website on a roughly weekly basis, we necessarily cannot cover all related developments on all issues.

We seek instead to provide information that we hope will be useful as a starting point for thinking about issues relating to defenses against U.S. patent infringement claims.

Patent Defenses was last updated November 11, 2024.

Patent Defenses is a research tool maintained by Klarquist since 2004. Visit klarquist.com to learn more about us.

©2024 Klarquist Sparkman, LLP. All Rights Reserved. | Privacy Notice | Privacy Policy | Site Map