Liability for patent infringement can be either direct or indirect. In cases of direct infringement, the defendant makes, uses, sells, offers for sale, or imports a product that directly infringes a patent. For indirect infringement, the defendant may be assisting another party in directly infringing a patent. Indirect infringement includes inducing infringement or contributory infringement, each with specific requirements. This case focuses on inducement, where a party encourages or aids another to infringe a patent intentionally.
Example of Inducement of Patent Infringement
An example of inducement could be a company that sells a standard component with instructions for use in a way that results in a patented combination or performs a patented method known to the company. Although the company itself does not directly infringe (as it doesn’t perform all claim requirements), it may still be inducing its customers to infringe by showing them how to use the component in an infringing manner.
Under 35 U.S.C. § 271(b), “whoever actively induces infringement of a patent shall be liable as an infringer.” For active inducement, the accused party must have a specific intent to encourage infringement by another.
Case Study: Kinetic Concepts, Inc. v. Blue Sky Medical Group, Inc.
In Kinetic Concepts, Inc. v. Blue Sky Medical Group, Inc., (Fed. Cir. 2009), the Federal Circuit examined what constitutes specific intent in inducement cases. Here, the technology involved a wound treatment apparatus and method. During trial, the co-founders of the accused company testified that they believed the kits they sold merely practiced a prior art method rather than an infringing method. The jury sided with the co-founders, finding they lacked the specific intent needed to be liable for active inducement of patent infringement.
This defense resembled a “practicing the prior art” argument, where the defendant believes they are using technology already in the public domain. The court clarified that practicing the prior art is not a defense to infringement (although it could be a basis for challenging patent validity). However, a defendant’s good faith belief that they are practicing the prior art may support a finding that the defendant did not have the intent required for actively inducing infringement.
Key Takeaway
To establish active inducement of infringement, there must be clear evidence of specific intent to encourage another’s infringement. A belief that a product or method falls within the public domain and does not infringe on a patent can influence a jury’s finding regarding intent, even though it is not a formal defense to infringement.
For more guidance on indirect infringement and the requirements for inducement liability, feel free to reach out at (949) 433-0900. As an experienced patent attorney serving Orange County, Irvine, Los Angeles, San Diego, and surrounding areas, I can help you navigate complex issues of patent liability and enforcement.