What Violates a Patent?

By Michele Vrouvas

Innovation drives success but also can breed danger. If you make or sell a device or process that resembles a patented invention, and you have not first secured the patent holder’s permission, you could be found guilty of patent infringement, even if your violation was unintentional. Violating a patent is a serious offense that can take several forms and it carries stiff penalties. To avoid an infringement lawsuit, know beforehand what actions violate a patent and seek professional counsel if in doubt. In the words of patent attorney William Ramsey, “Every person has a duty to avoid patent infringement.”

Direct Infringement

Under the United States Code, you are a direct infringer if you make, use or sell within the United States an invention – whether a device or process – protected by a patent that hasn’t expired. If your invention contains every characteristic of the patented one, you may be charged with literal infringement. It won't matter if your invention is a process that has additional steps or doesn’t work as well as the patented process. Likewise, even if you prove that you did not know the patent existed, you can still be found guilty of direct infringement.

Induced Infringement

Induced infringement is a form of indirect patent violation that involves third parties. It requires proof of harmful intent. You induce infringement by encouraging others to perform acts of direct infringement. For example, assume a patent exists for the consumption of yogurt as a digestive aid. If you are a supplier of yogurt and you advertise that yogurt helps people digest their food, you can be charged with induced infringement. Your advertisements induced consumers to directly infringe a patent by using the yogurt as the patent intended.

File a provisional application for patent online. Get Started Now

Contributory Infringement

Contributory infringement is another indirect act that occurs when an infringer sells materials to be used with a patented invention. An example would be a dough-kneading attachment designed for use with a patented artisan bread mixer. To prove contributory infringement, a patent holder must show that the accused infringer knew the materials would be used to infringe a patent and that there are no other commercial uses for the materials. If the accused materials are made up of several parts and not every part infringes a patent, the alleged infringer can still be found guilty.

Doctrine of Equivalents

If you attempt to avoid violating a patent by making or selling an invention that's similar but not identical, you can be charged with patent infringement under the “Doctrine of Equivalents.” The equivalency doctrine permits a court to find infringement if your invention performs “substantially the same function in substantially the same way to obtain the same result” as a patent. The doctrine does not require the patent holder to prove you acted with intent.

Willful Infringement

If you make or sell an invention without having first taken steps to confirm it's not patent-protected, you can be convicted of willful infringement and required to pay damages three times greater than the patent holder’s actual damages. To establish willful infringement, the patent holder must prove, first, that you took a risk to infringe his patent and, second, that you knew of the risk or it was obvious enough that you should have known.

File a provisional application for patent online. Get Started Now
What Happens When Someone Tries to Use a Patent That Has Expired?



Related articles

Can Products Be Similar Without Violating Patent Laws?

Products can be very similar without violating patent laws because patents do not protect products. Patents protect inventions. This subtle distinction explains why very similar products do not automatically violate patent laws. If you believe your invention is so similar to another that it might infringe on the invention, you should consider consulting legal counsel or an online legal service because the penalties for infringement can be very steep.

What Needs a Patent: An Idea or An Invention?

When you have a great idea, you'll be tempted to patent the idea as soon as possible. However, simply having a great idea isn't enough to file for a patent. You'll need to meet a number of very specific requirements before you can start the patent application process and eventually obtain a patent.

Principles of Patent Law

U.S. patent law is ultimately based on the federal constitution. In addition, many federal statutes and regulations govern patents. The purpose of patent law is to encourage people to create inventions by offering them a financial incentive to do so. You can sue for patent infringement in federal courts if someone attempts to profit from your patented idea without your permission.

Start here. LegalZoom. Legal help is here. LLCs. Corporations. Patents. Attorney help.

Related articles

How to Get a Patent on an Idea for Clothing Accessories

If after you come up with a great idea for a new clothing accessory and want to begin capitalizing on it, you might ...

How to Patent a Toy Idea

It is impossible to patent a mere idea -- you must first reduce it to tangible form. To be eligible for a patent, your ...

Checklist for Getting a Patent

Coming up with a brilliant invention can be exciting. Among the most important steps you'll want to take right away is ...

What to Do When Someone Steals Your Ideas

An unexpressed idea enjoys no legal protections. If you have fixed your idea in a tangible medium, such as by recording ...

Browse by category
Ready to Begin? GET STARTED