3. What offensive measures do you have at your disposal to deal with a troublesome patent?

Here, we discuss measures to manage a troublesome patent by knocking it down, or at least limiting its scope.

The validity of a patent can be challenged in two ways:

• through an opposition procedure before the office that granted the patent. If the office considers that the patent is invalid, it declares the patent revoked;

• through a procedure known as cancellation before a court in the territory in which the patent has effect. If the court finds that the patent is invalid, it declares the patent cancelled.