Patented

Infringement

Infringement includes literal infringement of a patent, meaning they are performing a prohibited act that is protected against by the patent. There is also the Doctrine of Equivalents. This doctrine protects from someone creating a product that is basically, by all rights, the same product that is protected with just a few trivial modifications. In some countries, like the United States, there is liability for another two forms of infringement. One is contributory infringement, which is participating in another's infringement. This could be a company helping another company to create a patented product or selling the patented product which is created by another company. There is also inducement to infringement, which is when a party induces or assists another party in violating a patent. An example of this would be a company paying another party to create a patented product in order to reduce their competitor's market share. This is important when it comes to gray market goods, which is when a patent owner sells a product in country A, wherein they have the product patented, then another party buys and sells it, without the owner's permission, in country B, wherein the owner also has a patent for the product. With either national or regional exhaustion being the law the in country B, the owner may still be able to enforce their patent rights; however, if country B has a policy of international exhaustion, then the patent owner will have no legal grounds for enforcing the patent in country B as it was already sold in a different country.